Home / 11,781.18-16,251.30-10,124.46

Finding the Fourth Proportional to 11,781.18, 16,251.30 and 10,124.46

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Solution

The fourth proportional to 11,781.18, 16,251.30 and 10,124.46 is: 13,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.18 : 16,251.30 = 10,124.46 : x
  2. Step 2: Convert to fraction form
    11,781.18/16,251.30 = 10,124.46/x
  3. Step 3: Cross multiply
    11,781.18x = 16,251.30 × 10,124.46
  4. Step 4: Simplify right side
    11,781.18x = 164,535,636.80
  5. Step 5: Solve for x
    x = 164,535,636.80/11,781.18
  6. Step 6: Final answer
    x = 13,965.97

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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.