Home / 12,381.14-17,083.46-7,343.15

Finding the Fourth Proportional to 12,381.14, 17,083.46 and 7,343.15

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Solution

The fourth proportional to 12,381.14, 17,083.46 and 7,343.15 is: 10,132.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381.14 : 17,083.46 = 7,343.15 : x
  2. Step 2: Convert to fraction form
    12,381.14/17,083.46 = 7,343.15/x
  3. Step 3: Cross multiply
    12,381.14x = 17,083.46 × 7,343.15
  4. Step 4: Simplify right side
    12,381.14x = 125,446,287.17
  5. Step 5: Solve for x
    x = 125,446,287.17/12,381.14
  6. Step 6: Final answer
    x = 10,132.05

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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.