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Finding the Fourth Proportional to 12,670.68, 17,481.26 and 7,361.13

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Solution

The fourth proportional to 12,670.68, 17,481.26 and 7,361.13 is: 10,155.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.68 : 17,481.26 = 7,361.13 : x
  2. Step 2: Convert to fraction form
    12,670.68/17,481.26 = 7,361.13/x
  3. Step 3: Cross multiply
    12,670.68x = 17,481.26 × 7,361.13
  4. Step 4: Simplify right side
    12,670.68x = 128,681,790.62
  5. Step 5: Solve for x
    x = 128,681,790.62/12,670.68
  6. Step 6: Final answer
    x = 10,155.87

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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.