Home / 15,273.92-21,079.20-8,560.17

Finding the Fourth Proportional to 15,273.92, 21,079.20 and 8,560.17

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Solution

The fourth proportional to 15,273.92, 21,079.20 and 8,560.17 is: 11,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,273.92 : 21,079.20 = 8,560.17 : x
  2. Step 2: Convert to fraction form
    15,273.92/21,079.20 = 8,560.17/x
  3. Step 3: Cross multiply
    15,273.92x = 21,079.20 × 8,560.17
  4. Step 4: Simplify right side
    15,273.92x = 180,441,535.46
  5. Step 5: Solve for x
    x = 180,441,535.46/15,273.92
  6. Step 6: Final answer
    x = 11,813.70

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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.