Home / 8,901.30-12,273.84-7,281.15

Finding the Fourth Proportional to 8,901.30, 12,273.84 and 7,281.15

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Solution

The fourth proportional to 8,901.30, 12,273.84 and 7,281.15 is: 10,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.30 : 12,273.84 = 7,281.15 : x
  2. Step 2: Convert to fraction form
    8,901.30/12,273.84 = 7,281.15/x
  3. Step 3: Cross multiply
    8,901.30x = 12,273.84 × 7,281.15
  4. Step 4: Simplify right side
    8,901.30x = 89,367,670.12
  5. Step 5: Solve for x
    x = 89,367,670.12/8,901.30
  6. Step 6: Final answer
    x = 10,039.84

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Double scale
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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.