Home / 8,726.40-13,081.32-3,791.16

Finding the Fourth Proportional to 8,726.40, 13,081.32 and 3,791.16

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Solution

The fourth proportional to 8,726.40, 13,081.32 and 3,791.16 is: 5,683.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.40 : 13,081.32 = 3,791.16 : x
  2. Step 2: Convert to fraction form
    8,726.40/13,081.32 = 3,791.16/x
  3. Step 3: Cross multiply
    8,726.40x = 13,081.32 × 3,791.16
  4. Step 4: Simplify right side
    8,726.40x = 49,593,377.13
  5. Step 5: Solve for x
    x = 49,593,377.13/8,726.40
  6. Step 6: Final answer
    x = 5,683.14

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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.