Home / 12,475.20-18,711.72-5,080.44

Finding the Fourth Proportional to 12,475.20, 18,711.72 and 5,080.44

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Solution

The fourth proportional to 12,475.20, 18,711.72 and 5,080.44 is: 7,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.20 : 18,711.72 = 5,080.44 : x
  2. Step 2: Convert to fraction form
    12,475.20/18,711.72 = 5,080.44/x
  3. Step 3: Cross multiply
    12,475.20x = 18,711.72 × 5,080.44
  4. Step 4: Simplify right side
    12,475.20x = 95,063,770.76
  5. Step 5: Solve for x
    x = 95,063,770.76/12,475.20
  6. Step 6: Final answer
    x = 7,620.22

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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.