Home / 13,499.52-20,245.80-5,180.04

Finding the Fourth Proportional to 13,499.52, 20,245.80 and 5,180.04

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Solution

The fourth proportional to 13,499.52, 20,245.80 and 5,180.04 is: 7,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.52 : 20,245.80 = 5,180.04 : x
  2. Step 2: Convert to fraction form
    13,499.52/20,245.80 = 5,180.04/x
  3. Step 3: Cross multiply
    13,499.52x = 20,245.80 × 5,180.04
  4. Step 4: Simplify right side
    13,499.52x = 104,874,053.83
  5. Step 5: Solve for x
    x = 104,874,053.83/13,499.52
  6. Step 6: Final answer
    x = 7,768.72

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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.