Home / 19,175.08-28,753.20-7,158.88

Finding the Fourth Proportional to 19,175.08, 28,753.20 and 7,158.88

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Solution

The fourth proportional to 19,175.08, 28,753.20 and 7,158.88 is: 10,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,175.08 : 28,753.20 = 7,158.88 : x
  2. Step 2: Convert to fraction form
    19,175.08/28,753.20 = 7,158.88/x
  3. Step 3: Cross multiply
    19,175.08x = 28,753.20 × 7,158.88
  4. Step 4: Simplify right side
    19,175.08x = 205,840,708.42
  5. Step 5: Solve for x
    x = 205,840,708.42/19,175.08
  6. Step 6: Final answer
    x = 10,734.80

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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.