Home / 13,817.52-20,732.40-7,242.15

Finding the Fourth Proportional to 13,817.52, 20,732.40 and 7,242.15

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Solution

The fourth proportional to 13,817.52, 20,732.40 and 7,242.15 is: 10,866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.52 : 20,732.40 = 7,242.15 : x
  2. Step 2: Convert to fraction form
    13,817.52/20,732.40 = 7,242.15/x
  3. Step 3: Cross multiply
    13,817.52x = 20,732.40 × 7,242.15
  4. Step 4: Simplify right side
    13,817.52x = 150,147,150.66
  5. Step 5: Solve for x
    x = 150,147,150.66/13,817.52
  6. Step 6: Final answer
    x = 10,866.43

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1.5x scale

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.