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Finding the Fourth Proportional to 12,376.68, 17,079.86 and 7,343.39

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Solution

The fourth proportional to 12,376.68, 17,079.86 and 7,343.39 is: 10,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.68 : 17,079.86 = 7,343.39 : x
  2. Step 2: Convert to fraction form
    12,376.68/17,079.86 = 7,343.39/x
  3. Step 3: Cross multiply
    12,376.68x = 17,079.86 × 7,343.39
  4. Step 4: Simplify right side
    12,376.68x = 125,424,073.13
  5. Step 5: Solve for x
    x = 125,424,073.13/12,376.68
  6. Step 6: Final answer
    x = 10,133.90

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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.