Home / 15,863.52-21,892.44-9,150.12

Finding the Fourth Proportional to 15,863.52, 21,892.44 and 9,150.12

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Solution

The fourth proportional to 15,863.52, 21,892.44 and 9,150.12 is: 12,627.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.52 : 21,892.44 = 9,150.12 : x
  2. Step 2: Convert to fraction form
    15,863.52/21,892.44 = 9,150.12/x
  3. Step 3: Cross multiply
    15,863.52x = 21,892.44 × 9,150.12
  4. Step 4: Simplify right side
    15,863.52x = 200,318,453.09
  5. Step 5: Solve for x
    x = 200,318,453.09/15,863.52
  6. Step 6: Final answer
    x = 12,627.62

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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.