Home / 19,179.46-28,767.18-5,140.97

Finding the Fourth Proportional to 19,179.46, 28,767.18 and 5,140.97

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Solution

The fourth proportional to 19,179.46, 28,767.18 and 5,140.97 is: 7,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.46 : 28,767.18 = 5,140.97 : x
  2. Step 2: Convert to fraction form
    19,179.46/28,767.18 = 5,140.97/x
  3. Step 3: Cross multiply
    19,179.46x = 28,767.18 × 5,140.97
  4. Step 4: Simplify right side
    19,179.46x = 147,891,149.31
  5. Step 5: Solve for x
    x = 147,891,149.31/19,179.46
  6. Step 6: Final answer
    x = 7,710.91

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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.