Home / 15,456.75-23,166.12-7,125.21

Finding the Fourth Proportional to 15,456.75, 23,166.12 and 7,125.21

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Solution

The fourth proportional to 15,456.75, 23,166.12 and 7,125.21 is: 10,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,456.75 : 23,166.12 = 7,125.21 : x
  2. Step 2: Convert to fraction form
    15,456.75/23,166.12 = 7,125.21/x
  3. Step 3: Cross multiply
    15,456.75x = 23,166.12 × 7,125.21
  4. Step 4: Simplify right side
    15,456.75x = 165,063,469.89
  5. Step 5: Solve for x
    x = 165,063,469.89/15,456.75
  6. Step 6: Final answer
    x = 10,679.05

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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.