Home / 8,625.10-11,906.94-5,645.49

Finding the Fourth Proportional to 8,625.10, 11,906.94 and 5,645.49

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Solution

The fourth proportional to 8,625.10, 11,906.94 and 5,645.49 is: 7,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.10 : 11,906.94 = 5,645.49 : x
  2. Step 2: Convert to fraction form
    8,625.10/11,906.94 = 5,645.49/x
  3. Step 3: Cross multiply
    8,625.10x = 11,906.94 × 5,645.49
  4. Step 4: Simplify right side
    8,625.10x = 67,220,510.70
  5. Step 5: Solve for x
    x = 67,220,510.70/8,625.10
  6. Step 6: Final answer
    x = 7,793.59

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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.