Home / 18,677.50-25,773.72-11,124.38

Finding the Fourth Proportional to 18,677.50, 25,773.72 and 11,124.38

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Solution

The fourth proportional to 18,677.50, 25,773.72 and 11,124.38 is: 15,350.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.50 : 25,773.72 = 11,124.38 : x
  2. Step 2: Convert to fraction form
    18,677.50/25,773.72 = 11,124.38/x
  3. Step 3: Cross multiply
    18,677.50x = 25,773.72 × 11,124.38
  4. Step 4: Simplify right side
    18,677.50x = 286,716,655.29
  5. Step 5: Solve for x
    x = 286,716,655.29/18,677.50
  6. Step 6: Final answer
    x = 15,350.91

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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.