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Finding the Fourth Proportional to 12,375.36, 17,080.48 and 7,342.38

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Solution

The fourth proportional to 12,375.36, 17,080.48 and 7,342.38 is: 10,133.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.36 : 17,080.48 = 7,342.38 : x
  2. Step 2: Convert to fraction form
    12,375.36/17,080.48 = 7,342.38/x
  3. Step 3: Cross multiply
    12,375.36x = 17,080.48 × 7,342.38
  4. Step 4: Simplify right side
    12,375.36x = 125,411,383.92
  5. Step 5: Solve for x
    x = 125,411,383.92/12,375.36
  6. Step 6: Final answer
    x = 10,133.96

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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.