Home / 18,713.28-28,069.90-5,565.62

Finding the Fourth Proportional to 18,713.28, 28,069.90 and 5,565.62

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Solution

The fourth proportional to 18,713.28, 28,069.90 and 5,565.62 is: 8,348.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.28 : 28,069.90 = 5,565.62 : x
  2. Step 2: Convert to fraction form
    18,713.28/28,069.90 = 5,565.62/x
  3. Step 3: Cross multiply
    18,713.28x = 28,069.90 × 5,565.62
  4. Step 4: Simplify right side
    18,713.28x = 156,226,396.84
  5. Step 5: Solve for x
    x = 156,226,396.84/18,713.28
  6. Step 6: Final answer
    x = 8,348.42

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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.