Home / 12,659.23-18,972.33-9,161.02

Finding the Fourth Proportional to 12,659.23, 18,972.33 and 9,161.02

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Solution

The fourth proportional to 12,659.23, 18,972.33 and 9,161.02 is: 13,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.23 : 18,972.33 = 9,161.02 : x
  2. Step 2: Convert to fraction form
    12,659.23/18,972.33 = 9,161.02/x
  3. Step 3: Cross multiply
    12,659.23x = 18,972.33 × 9,161.02
  4. Step 4: Simplify right side
    12,659.23x = 173,805,894.58
  5. Step 5: Solve for x
    x = 173,805,894.58/12,659.23
  6. Step 6: Final answer
    x = 13,729.58

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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.