Home / 15,589.62-21,513.78-8,874.90

Finding the Fourth Proportional to 15,589.62, 21,513.78 and 8,874.90

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Solution

The fourth proportional to 15,589.62, 21,513.78 and 8,874.90 is: 12,247.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589.62 : 21,513.78 = 8,874.90 : x
  2. Step 2: Convert to fraction form
    15,589.62/21,513.78 = 8,874.90/x
  3. Step 3: Cross multiply
    15,589.62x = 21,513.78 × 8,874.90
  4. Step 4: Simplify right side
    15,589.62x = 190,932,646.12
  5. Step 5: Solve for x
    x = 190,932,646.12/15,589.62
  6. Step 6: Final answer
    x = 12,247.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.