Home / 18,767.52-28,147.12-5,618.16

Finding the Fourth Proportional to 18,767.52, 28,147.12 and 5,618.16

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Solution

The fourth proportional to 18,767.52, 28,147.12 and 5,618.16 is: 8,425.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.52 : 28,147.12 = 5,618.16 : x
  2. Step 2: Convert to fraction form
    18,767.52/28,147.12 = 5,618.16/x
  3. Step 3: Cross multiply
    18,767.52x = 28,147.12 × 5,618.16
  4. Step 4: Simplify right side
    18,767.52x = 158,135,023.70
  5. Step 5: Solve for x
    x = 158,135,023.70/18,767.52
  6. Step 6: Final answer
    x = 8,425.99

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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.