Home / 10,781.58-16,144.20-10,124.66

Finding the Fourth Proportional to 10,781.58, 16,144.20 and 10,124.66

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Solution

The fourth proportional to 10,781.58, 16,144.20 and 10,124.66 is: 15,160.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.58 : 16,144.20 = 10,124.66 : x
  2. Step 2: Convert to fraction form
    10,781.58/16,144.20 = 10,124.66/x
  3. Step 3: Cross multiply
    10,781.58x = 16,144.20 × 10,124.66
  4. Step 4: Simplify right side
    10,781.58x = 163,454,535.97
  5. Step 5: Solve for x
    x = 163,454,535.97/10,781.58
  6. Step 6: Final answer
    x = 15,160.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.