Home / 15,942.28-22,001.10-8,868.70

Finding the Fourth Proportional to 15,942.28, 22,001.10 and 8,868.70

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Solution

The fourth proportional to 15,942.28, 22,001.10 and 8,868.70 is: 12,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942.28 : 22,001.10 = 8,868.70 : x
  2. Step 2: Convert to fraction form
    15,942.28/22,001.10 = 8,868.70/x
  3. Step 3: Cross multiply
    15,942.28x = 22,001.10 × 8,868.70
  4. Step 4: Simplify right side
    15,942.28x = 195,121,155.57
  5. Step 5: Solve for x
    x = 195,121,155.57/15,942.28
  6. Step 6: Final answer
    x = 12,239.23

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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.