Home / 15,766.34-21,757.29-8,693.42

Finding the Fourth Proportional to 15,766.34, 21,757.29 and 8,693.42

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Solution

The fourth proportional to 15,766.34, 21,757.29 and 8,693.42 is: 11,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.34 : 21,757.29 = 8,693.42 : x
  2. Step 2: Convert to fraction form
    15,766.34/21,757.29 = 8,693.42/x
  3. Step 3: Cross multiply
    15,766.34x = 21,757.29 × 8,693.42
  4. Step 4: Simplify right side
    15,766.34x = 189,145,260.03
  5. Step 5: Solve for x
    x = 189,145,260.03/15,766.34
  6. Step 6: Final answer
    x = 11,996.78

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1.5x scale

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.