Home / 18,304.50-25,260.30-9,921

Finding the Fourth Proportional to 18,304.50, 25,260.30 and 9,921

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Solution

The fourth proportional to 18,304.50, 25,260.30 and 9,921 is: 13,691.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,304.50 : 25,260.30 = 9,921 : x
  2. Step 2: Convert to fraction form
    18,304.50/25,260.30 = 9,921/x
  3. Step 3: Cross multiply
    18,304.50x = 25,260.30 × 9,921
  4. Step 4: Simplify right side
    18,304.50x = 250,607,436.30
  5. Step 5: Solve for x
    x = 250,607,436.30/18,304.50
  6. Step 6: Final answer
    x = 13,691.03

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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.