Home / 13,741.86-20,613.15-3,746.70

Finding the Fourth Proportional to 13,741.86, 20,613.15 and 3,746.70

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Solution

The fourth proportional to 13,741.86, 20,613.15 and 3,746.70 is: 5,620.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,741.86 : 20,613.15 = 3,746.70 : x
  2. Step 2: Convert to fraction form
    13,741.86/20,613.15 = 3,746.70/x
  3. Step 3: Cross multiply
    13,741.86x = 20,613.15 × 3,746.70
  4. Step 4: Simplify right side
    13,741.86x = 77,231,289.11
  5. Step 5: Solve for x
    x = 77,231,289.11/13,741.86
  6. Step 6: Final answer
    x = 5,620.15

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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.