Home / 11,982.72-16,535.40-6,677.76

Finding the Fourth Proportional to 11,982.72, 16,535.40 and 6,677.76

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Solution

The fourth proportional to 11,982.72, 16,535.40 and 6,677.76 is: 9,214.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.72 : 16,535.40 = 6,677.76 : x
  2. Step 2: Convert to fraction form
    11,982.72/16,535.40 = 6,677.76/x
  3. Step 3: Cross multiply
    11,982.72x = 16,535.40 × 6,677.76
  4. Step 4: Simplify right side
    11,982.72x = 110,419,432.70
  5. Step 5: Solve for x
    x = 110,419,432.70/11,982.72
  6. Step 6: Final answer
    x = 9,214.89

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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.