Home / 15,540.98-21,446.62-9,167.64

Finding the Fourth Proportional to 15,540.98, 21,446.62 and 9,167.64

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Solution

The fourth proportional to 15,540.98, 21,446.62 and 9,167.64 is: 12,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.98 : 21,446.62 = 9,167.64 : x
  2. Step 2: Convert to fraction form
    15,540.98/21,446.62 = 9,167.64/x
  3. Step 3: Cross multiply
    15,540.98x = 21,446.62 × 9,167.64
  4. Step 4: Simplify right side
    15,540.98x = 196,614,891.38
  5. Step 5: Solve for x
    x = 196,614,891.38/15,540.98
  6. Step 6: Final answer
    x = 12,651.38

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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.