Home / 13,459.56-18,589.80-8,976

Finding the Fourth Proportional to 13,459.56, 18,589.80 and 8,976

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Solution

The fourth proportional to 13,459.56, 18,589.80 and 8,976 is: 12,397.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.56 : 18,589.80 = 8,976 : x
  2. Step 2: Convert to fraction form
    13,459.56/18,589.80 = 8,976/x
  3. Step 3: Cross multiply
    13,459.56x = 18,589.80 × 8,976
  4. Step 4: Simplify right side
    13,459.56x = 166,862,044.80
  5. Step 5: Solve for x
    x = 166,862,044.80/13,459.56
  6. Step 6: Final answer
    x = 12,397.29

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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.