Home / 18,766.38-28,154.55-5,618.82

Finding the Fourth Proportional to 18,766.38, 28,154.55 and 5,618.82

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Solution

The fourth proportional to 18,766.38, 28,154.55 and 5,618.82 is: 8,429.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.38 : 28,154.55 = 5,618.82 : x
  2. Step 2: Convert to fraction form
    18,766.38/28,154.55 = 5,618.82/x
  3. Step 3: Cross multiply
    18,766.38x = 28,154.55 × 5,618.82
  4. Step 4: Simplify right side
    18,766.38x = 158,195,348.63
  5. Step 5: Solve for x
    x = 158,195,348.63/18,766.38
  6. Step 6: Final answer
    x = 8,429.72

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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.