Home / 8,131.30-12,196.95-5,200.90

Finding the Fourth Proportional to 8,131.30, 12,196.95 and 5,200.90

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Solution

The fourth proportional to 8,131.30, 12,196.95 and 5,200.90 is: 7,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.30 : 12,196.95 = 5,200.90 : x
  2. Step 2: Convert to fraction form
    8,131.30/12,196.95 = 5,200.90/x
  3. Step 3: Cross multiply
    8,131.30x = 12,196.95 × 5,200.90
  4. Step 4: Simplify right side
    8,131.30x = 63,435,117.26
  5. Step 5: Solve for x
    x = 63,435,117.26/8,131.30
  6. Step 6: Final answer
    x = 7,801.35

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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.