Home / 12,359.97-18,531.73-7,975.03

Finding the Fourth Proportional to 12,359.97, 18,531.73 and 7,975.03

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Solution

The fourth proportional to 12,359.97, 18,531.73 and 7,975.03 is: 11,957.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.97 : 18,531.73 = 7,975.03 : x
  2. Step 2: Convert to fraction form
    12,359.97/18,531.73 = 7,975.03/x
  3. Step 3: Cross multiply
    12,359.97x = 18,531.73 × 7,975.03
  4. Step 4: Simplify right side
    12,359.97x = 147,791,102.70
  5. Step 5: Solve for x
    x = 147,791,102.70/12,359.97
  6. Step 6: Final answer
    x = 11,957.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.