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Finding the Fourth Proportional to 12,377.45, 17,080.11 and 7,342.13

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Solution

The fourth proportional to 12,377.45, 17,080.11 and 7,342.13 is: 10,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377.45 : 17,080.11 = 7,342.13 : x
  2. Step 2: Convert to fraction form
    12,377.45/17,080.11 = 7,342.13/x
  3. Step 3: Cross multiply
    12,377.45x = 17,080.11 × 7,342.13
  4. Step 4: Simplify right side
    12,377.45x = 125,404,388.03
  5. Step 5: Solve for x
    x = 125,404,388.03/12,377.45
  6. Step 6: Final answer
    x = 10,131.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.