Home / 15,766.51-21,757.72-8,693.32

Finding the Fourth Proportional to 15,766.51, 21,757.72 and 8,693.32

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Solution

The fourth proportional to 15,766.51, 21,757.72 and 8,693.32 is: 11,996.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.51 : 21,757.72 = 8,693.32 : x
  2. Step 2: Convert to fraction form
    15,766.51/21,757.72 = 8,693.32/x
  3. Step 3: Cross multiply
    15,766.51x = 21,757.72 × 8,693.32
  4. Step 4: Simplify right side
    15,766.51x = 189,146,691.91
  5. Step 5: Solve for x
    x = 189,146,691.91/15,766.51
  6. Step 6: Final answer
    x = 11,996.74

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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.