Home / 18,755.18-28,132.78-5,607.14

Finding the Fourth Proportional to 18,755.18, 28,132.78 and 5,607.14

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Solution

The fourth proportional to 18,755.18, 28,132.78 and 5,607.14 is: 8,410.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.18 : 28,132.78 = 5,607.14 : x
  2. Step 2: Convert to fraction form
    18,755.18/28,132.78 = 5,607.14/x
  3. Step 3: Cross multiply
    18,755.18x = 28,132.78 × 5,607.14
  4. Step 4: Simplify right side
    18,755.18x = 157,744,436.05
  5. Step 5: Solve for x
    x = 157,744,436.05/18,755.18
  6. Step 6: Final answer
    x = 8,410.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.