Home / 18,877.18-28,314.30-5,729.62

Finding the Fourth Proportional to 18,877.18, 28,314.30 and 5,729.62

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Solution

The fourth proportional to 18,877.18, 28,314.30 and 5,729.62 is: 8,593.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.18 : 28,314.30 = 5,729.62 : x
  2. Step 2: Convert to fraction form
    18,877.18/28,314.30 = 5,729.62/x
  3. Step 3: Cross multiply
    18,877.18x = 28,314.30 × 5,729.62
  4. Step 4: Simplify right side
    18,877.18x = 162,230,179.57
  5. Step 5: Solve for x
    x = 162,230,179.57/18,877.18
  6. Step 6: Final answer
    x = 8,593.98

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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.