Home / 12,362.68-18,538.26-7,170.04

Finding the Fourth Proportional to 12,362.68, 18,538.26 and 7,170.04

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Solution

The fourth proportional to 12,362.68, 18,538.26 and 7,170.04 is: 10,751.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.68 : 18,538.26 = 7,170.04 : x
  2. Step 2: Convert to fraction form
    12,362.68/18,538.26 = 7,170.04/x
  3. Step 3: Cross multiply
    12,362.68x = 18,538.26 × 7,170.04
  4. Step 4: Simplify right side
    12,362.68x = 132,920,065.73
  5. Step 5: Solve for x
    x = 132,920,065.73/12,362.68
  6. Step 6: Final answer
    x = 10,751.72

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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.