Home / 15,202.60-20,963.08-9,887.56

Finding the Fourth Proportional to 15,202.60, 20,963.08 and 9,887.56

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Solution

The fourth proportional to 15,202.60, 20,963.08 and 9,887.56 is: 13,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202.60 : 20,963.08 = 9,887.56 : x
  2. Step 2: Convert to fraction form
    15,202.60/20,963.08 = 9,887.56/x
  3. Step 3: Cross multiply
    15,202.60x = 20,963.08 × 9,887.56
  4. Step 4: Simplify right side
    15,202.60x = 207,273,711.28
  5. Step 5: Solve for x
    x = 207,273,711.28/15,202.60
  6. Step 6: Final answer
    x = 13,634.10

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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.