Home / 13,937.86-20,913.27-5,175.82

Finding the Fourth Proportional to 13,937.86, 20,913.27 and 5,175.82

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Solution

The fourth proportional to 13,937.86, 20,913.27 and 5,175.82 is: 7,766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.86 : 20,913.27 = 5,175.82 : x
  2. Step 2: Convert to fraction form
    13,937.86/20,913.27 = 5,175.82/x
  3. Step 3: Cross multiply
    13,937.86x = 20,913.27 × 5,175.82
  4. Step 4: Simplify right side
    13,937.86x = 108,243,321.13
  5. Step 5: Solve for x
    x = 108,243,321.13/13,937.86
  6. Step 6: Final answer
    x = 7,766.14

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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.