Home / 6,171.20-9,256.80-5,417.90

Finding the Fourth Proportional to 6,171.20, 9,256.80 and 5,417.90

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Solution

The fourth proportional to 6,171.20, 9,256.80 and 5,417.90 is: 8,126.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,171.20 : 9,256.80 = 5,417.90 : x
  2. Step 2: Convert to fraction form
    6,171.20/9,256.80 = 5,417.90/x
  3. Step 3: Cross multiply
    6,171.20x = 9,256.80 × 5,417.90
  4. Step 4: Simplify right side
    6,171.20x = 50,152,416.72
  5. Step 5: Solve for x
    x = 50,152,416.72/6,171.20
  6. Step 6: Final answer
    x = 8,126.85

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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.