Home / 11,996.61-16,555.30-6,691.11

Finding the Fourth Proportional to 11,996.61, 16,555.30 and 6,691.11

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Solution

The fourth proportional to 11,996.61, 16,555.30 and 6,691.11 is: 9,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.61 : 16,555.30 = 6,691.11 : x
  2. Step 2: Convert to fraction form
    11,996.61/16,555.30 = 6,691.11/x
  3. Step 3: Cross multiply
    11,996.61x = 16,555.30 × 6,691.11
  4. Step 4: Simplify right side
    11,996.61x = 110,773,316.66
  5. Step 5: Solve for x
    x = 110,773,316.66/11,996.61
  6. Step 6: Final answer
    x = 9,233.72

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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.