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Finding the Fourth Proportional to 15,080.40, 22,642.20 and 8,519.40

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Solution

The fourth proportional to 15,080.40, 22,642.20 and 8,519.40 is: 12,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,080.40 : 22,642.20 = 8,519.40 : x
  2. Step 2: Convert to fraction form
    15,080.40/22,642.20 = 8,519.40/x
  3. Step 3: Cross multiply
    15,080.40x = 22,642.20 × 8,519.40
  4. Step 4: Simplify right side
    15,080.40x = 192,897,958.68
  5. Step 5: Solve for x
    x = 192,897,958.68/15,080.40
  6. Step 6: Final answer
    x = 12,791.30

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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.