Home / 8,901.63-12,284.28-6,216.75

Finding the Fourth Proportional to 8,901.63, 12,284.28 and 6,216.75

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Solution

The fourth proportional to 8,901.63, 12,284.28 and 6,216.75 is: 8,579.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.63 : 12,284.28 = 6,216.75 : x
  2. Step 2: Convert to fraction form
    8,901.63/12,284.28 = 6,216.75/x
  3. Step 3: Cross multiply
    8,901.63x = 12,284.28 × 6,216.75
  4. Step 4: Simplify right side
    8,901.63x = 76,368,297.69
  5. Step 5: Solve for x
    x = 76,368,297.69/8,901.63
  6. Step 6: Final answer
    x = 8,579.14

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Find fourth proportional to 4,450.82, 6,142.14 and 3,108.38
Half scale
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Double scale
Find fourth proportional to 8,902.63, 12,285.66 and 6,217.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.