Home / 15,456.62-23,191.31-7,131.44

Finding the Fourth Proportional to 15,456.62, 23,191.31 and 7,131.44

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Solution

The fourth proportional to 15,456.62, 23,191.31 and 7,131.44 is: 10,700.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,456.62 : 23,191.31 = 7,131.44 : x
  2. Step 2: Convert to fraction form
    15,456.62/23,191.31 = 7,131.44/x
  3. Step 3: Cross multiply
    15,456.62x = 23,191.31 × 7,131.44
  4. Step 4: Simplify right side
    15,456.62x = 165,387,511.59
  5. Step 5: Solve for x
    x = 165,387,511.59/15,456.62
  6. Step 6: Final answer
    x = 10,700.11

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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.