Home / 8,645.27-11,930.61-5,108.46

Finding the Fourth Proportional to 8,645.27, 11,930.61 and 5,108.46

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Solution

The fourth proportional to 8,645.27, 11,930.61 and 5,108.46 is: 7,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.27 : 11,930.61 = 5,108.46 : x
  2. Step 2: Convert to fraction form
    8,645.27/11,930.61 = 5,108.46/x
  3. Step 3: Cross multiply
    8,645.27x = 11,930.61 × 5,108.46
  4. Step 4: Simplify right side
    8,645.27x = 60,947,043.96
  5. Step 5: Solve for x
    x = 60,947,043.96/8,645.27
  6. Step 6: Final answer
    x = 7,049.76

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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.