Home / 10,385.80-15,566.92-3,719.22

Finding the Fourth Proportional to 10,385.80, 15,566.92 and 3,719.22

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Solution

The fourth proportional to 10,385.80, 15,566.92 and 3,719.22 is: 5,574.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.80 : 15,566.92 = 3,719.22 : x
  2. Step 2: Convert to fraction form
    10,385.80/15,566.92 = 3,719.22/x
  3. Step 3: Cross multiply
    10,385.80x = 15,566.92 × 3,719.22
  4. Step 4: Simplify right side
    10,385.80x = 57,896,800.20
  5. Step 5: Solve for x
    x = 57,896,800.20/10,385.80
  6. Step 6: Final answer
    x = 5,574.61

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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.