Home / 13,669.60-20,489.52-8,974.72

Finding the Fourth Proportional to 13,669.60, 20,489.52 and 8,974.72

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Solution

The fourth proportional to 13,669.60, 20,489.52 and 8,974.72 is: 13,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.60 : 20,489.52 = 8,974.72 : x
  2. Step 2: Convert to fraction form
    13,669.60/20,489.52 = 8,974.72/x
  3. Step 3: Cross multiply
    13,669.60x = 20,489.52 × 8,974.72
  4. Step 4: Simplify right side
    13,669.60x = 183,887,704.93
  5. Step 5: Solve for x
    x = 183,887,704.93/13,669.60
  6. Step 6: Final answer
    x = 13,452.31

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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.