Home / 13,511.60-20,269.92-4,747.04

Finding the Fourth Proportional to 13,511.60, 20,269.92 and 4,747.04

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Solution

The fourth proportional to 13,511.60, 20,269.92 and 4,747.04 is: 7,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.60 : 20,269.92 = 4,747.04 : x
  2. Step 2: Convert to fraction form
    13,511.60/20,269.92 = 4,747.04/x
  3. Step 3: Cross multiply
    13,511.60x = 20,269.92 × 4,747.04
  4. Step 4: Simplify right side
    13,511.60x = 96,222,121.04
  5. Step 5: Solve for x
    x = 96,222,121.04/13,511.60
  6. Step 6: Final answer
    x = 7,121.45

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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.