Home / 14,049.20-19,387.73-7,761.57

Finding the Fourth Proportional to 14,049.20, 19,387.73 and 7,761.57

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Solution

The fourth proportional to 14,049.20, 19,387.73 and 7,761.57 is: 10,710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.20 : 19,387.73 = 7,761.57 : x
  2. Step 2: Convert to fraction form
    14,049.20/19,387.73 = 7,761.57/x
  3. Step 3: Cross multiply
    14,049.20x = 19,387.73 × 7,761.57
  4. Step 4: Simplify right side
    14,049.20x = 150,479,184.73
  5. Step 5: Solve for x
    x = 150,479,184.73/14,049.20
  6. Step 6: Final answer
    x = 10,710.88

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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.