Home / 18,115.73-24,998.60-10,157.78

Finding the Fourth Proportional to 18,115.73, 24,998.60 and 10,157.78

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Solution

The fourth proportional to 18,115.73, 24,998.60 and 10,157.78 is: 14,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.73 : 24,998.60 = 10,157.78 : x
  2. Step 2: Convert to fraction form
    18,115.73/24,998.60 = 10,157.78/x
  3. Step 3: Cross multiply
    18,115.73x = 24,998.60 × 10,157.78
  4. Step 4: Simplify right side
    18,115.73x = 253,930,279.11
  5. Step 5: Solve for x
    x = 253,930,279.11/18,115.73
  6. Step 6: Final answer
    x = 14,017.12

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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.