Home / 15,487.92-21,372.75-8,414.10

Finding the Fourth Proportional to 15,487.92, 21,372.75 and 8,414.10

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Solution

The fourth proportional to 15,487.92, 21,372.75 and 8,414.10 is: 11,611.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.92 : 21,372.75 = 8,414.10 : x
  2. Step 2: Convert to fraction form
    15,487.92/21,372.75 = 8,414.10/x
  3. Step 3: Cross multiply
    15,487.92x = 21,372.75 × 8,414.10
  4. Step 4: Simplify right side
    15,487.92x = 179,832,455.78
  5. Step 5: Solve for x
    x = 179,832,455.78/15,487.92
  6. Step 6: Final answer
    x = 11,611.14

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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.