Home / 13,587.64-20,381.61-3,726.93

Finding the Fourth Proportional to 13,587.64, 20,381.61 and 3,726.93

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Solution

The fourth proportional to 13,587.64, 20,381.61 and 3,726.93 is: 5,590.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.64 : 20,381.61 = 3,726.93 : x
  2. Step 2: Convert to fraction form
    13,587.64/20,381.61 = 3,726.93/x
  3. Step 3: Cross multiply
    13,587.64x = 20,381.61 × 3,726.93
  4. Step 4: Simplify right side
    13,587.64x = 75,960,833.76
  5. Step 5: Solve for x
    x = 75,960,833.76/13,587.64
  6. Step 6: Final answer
    x = 5,590.44

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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.