Home / 8,781.48-13,174.92-3,587.76

Finding the Fourth Proportional to 8,781.48, 13,174.92 and 3,587.76

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Solution

The fourth proportional to 8,781.48, 13,174.92 and 3,587.76 is: 5,382.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.48 : 13,174.92 = 3,587.76 : x
  2. Step 2: Convert to fraction form
    8,781.48/13,174.92 = 3,587.76/x
  3. Step 3: Cross multiply
    8,781.48x = 13,174.92 × 3,587.76
  4. Step 4: Simplify right side
    8,781.48x = 47,268,450.98
  5. Step 5: Solve for x
    x = 47,268,450.98/8,781.48
  6. Step 6: Final answer
    x = 5,382.74

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1.5x scale

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.