Home / 18,677.89-25,773.42-11,123.17

Finding the Fourth Proportional to 18,677.89, 25,773.42 and 11,123.17

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Solution

The fourth proportional to 18,677.89, 25,773.42 and 11,123.17 is: 15,348.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.89 : 25,773.42 = 11,123.17 : x
  2. Step 2: Convert to fraction form
    18,677.89/25,773.42 = 11,123.17/x
  3. Step 3: Cross multiply
    18,677.89x = 25,773.42 × 11,123.17
  4. Step 4: Simplify right side
    18,677.89x = 286,682,160.54
  5. Step 5: Solve for x
    x = 286,682,160.54/18,677.89
  6. Step 6: Final answer
    x = 15,348.74

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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.