Home / 10,382.44-15,565.10-4,139.80

Finding the Fourth Proportional to 10,382.44, 15,565.10 and 4,139.80

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Solution

The fourth proportional to 10,382.44, 15,565.10 and 4,139.80 is: 6,206.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.44 : 15,565.10 = 4,139.80 : x
  2. Step 2: Convert to fraction form
    10,382.44/15,565.10 = 4,139.80/x
  3. Step 3: Cross multiply
    10,382.44x = 15,565.10 × 4,139.80
  4. Step 4: Simplify right side
    10,382.44x = 64,436,400.98
  5. Step 5: Solve for x
    x = 64,436,400.98/10,382.44
  6. Step 6: Final answer
    x = 6,206.29

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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.