Home / 13,531.80-20,283.93-9,149.70

Finding the Fourth Proportional to 13,531.80, 20,283.93 and 9,149.70

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Solution

The fourth proportional to 13,531.80, 20,283.93 and 9,149.70 is: 13,715.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.80 : 20,283.93 = 9,149.70 : x
  2. Step 2: Convert to fraction form
    13,531.80/20,283.93 = 9,149.70/x
  3. Step 3: Cross multiply
    13,531.80x = 20,283.93 × 9,149.70
  4. Step 4: Simplify right side
    13,531.80x = 185,591,874.32
  5. Step 5: Solve for x
    x = 185,591,874.32/13,531.80
  6. Step 6: Final answer
    x = 13,715.24

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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.