Home / 8,906.90-13,360.35-4,759.70

Finding the Fourth Proportional to 8,906.90, 13,360.35 and 4,759.70

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Solution

The fourth proportional to 8,906.90, 13,360.35 and 4,759.70 is: 7,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.90 : 13,360.35 = 4,759.70 : x
  2. Step 2: Convert to fraction form
    8,906.90/13,360.35 = 4,759.70/x
  3. Step 3: Cross multiply
    8,906.90x = 13,360.35 × 4,759.70
  4. Step 4: Simplify right side
    8,906.90x = 63,591,257.90
  5. Step 5: Solve for x
    x = 63,591,257.90/8,906.90
  6. Step 6: Final answer
    x = 7,139.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.