Home / 8,902.12-12,284.58-5,176.12

Finding the Fourth Proportional to 8,902.12, 12,284.58 and 5,176.12

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Solution

The fourth proportional to 8,902.12, 12,284.58 and 5,176.12 is: 7,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.12 : 12,284.58 = 5,176.12 : x
  2. Step 2: Convert to fraction form
    8,902.12/12,284.58 = 5,176.12/x
  3. Step 3: Cross multiply
    8,902.12x = 12,284.58 × 5,176.12
  4. Step 4: Simplify right side
    8,902.12x = 63,586,460.23
  5. Step 5: Solve for x
    x = 63,586,460.23/8,902.12
  6. Step 6: Final answer
    x = 7,142.84

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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.