Home / 10,377.20-15,565.80-2,586

Finding the Fourth Proportional to 10,377.20, 15,565.80 and 2,586

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Solution

The fourth proportional to 10,377.20, 15,565.80 and 2,586 is: 3,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,377.20 : 15,565.80 = 2,586 : x
  2. Step 2: Convert to fraction form
    10,377.20/15,565.80 = 2,586/x
  3. Step 3: Cross multiply
    10,377.20x = 15,565.80 × 2,586
  4. Step 4: Simplify right side
    10,377.20x = 40,253,158.80
  5. Step 5: Solve for x
    x = 40,253,158.80/10,377.20
  6. Step 6: Final answer
    x = 3,879.00

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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.