Home / 15,456.20-23,208.60-8,895.20

Finding the Fourth Proportional to 15,456.20, 23,208.60 and 8,895.20

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Solution

The fourth proportional to 15,456.20, 23,208.60 and 8,895.20 is: 13,356.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,456.20 : 23,208.60 = 8,895.20 : x
  2. Step 2: Convert to fraction form
    15,456.20/23,208.60 = 8,895.20/x
  3. Step 3: Cross multiply
    15,456.20x = 23,208.60 × 8,895.20
  4. Step 4: Simplify right side
    15,456.20x = 206,445,138.72
  5. Step 5: Solve for x
    x = 206,445,138.72/15,456.20
  6. Step 6: Final answer
    x = 13,356.78

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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.