Home / 15,766.45-21,757.92-8,693.02

Finding the Fourth Proportional to 15,766.45, 21,757.92 and 8,693.02

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Solution

The fourth proportional to 15,766.45, 21,757.92 and 8,693.02 is: 11,996.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.45 : 21,757.92 = 8,693.02 : x
  2. Step 2: Convert to fraction form
    15,766.45/21,757.92 = 8,693.02/x
  3. Step 3: Cross multiply
    15,766.45x = 21,757.92 × 8,693.02
  4. Step 4: Simplify right side
    15,766.45x = 189,142,028.32
  5. Step 5: Solve for x
    x = 189,142,028.32/15,766.45
  6. Step 6: Final answer
    x = 11,996.49

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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.