Home / 13,134.62-18,123.51-7,391.27

Finding the Fourth Proportional to 13,134.62, 18,123.51 and 7,391.27

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Solution

The fourth proportional to 13,134.62, 18,123.51 and 7,391.27 is: 10,198.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.62 : 18,123.51 = 7,391.27 : x
  2. Step 2: Convert to fraction form
    13,134.62/18,123.51 = 7,391.27/x
  3. Step 3: Cross multiply
    13,134.62x = 18,123.51 × 7,391.27
  4. Step 4: Simplify right side
    13,134.62x = 133,955,755.76
  5. Step 5: Solve for x
    x = 133,955,755.76/13,134.62
  6. Step 6: Final answer
    x = 10,198.68

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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.