Home / 13,587.08-20,380.64-3,726.44

Finding the Fourth Proportional to 13,587.08, 20,380.64 and 3,726.44

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Solution

The fourth proportional to 13,587.08, 20,380.64 and 3,726.44 is: 5,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.08 : 20,380.64 = 3,726.44 : x
  2. Step 2: Convert to fraction form
    13,587.08/20,380.64 = 3,726.44/x
  3. Step 3: Cross multiply
    13,587.08x = 20,380.64 × 3,726.44
  4. Step 4: Simplify right side
    13,587.08x = 75,947,111.59
  5. Step 5: Solve for x
    x = 75,947,111.59/13,587.08
  6. Step 6: Final answer
    x = 5,589.66

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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.