Home / 6,117.20-9,167.70-5,420.60

Finding the Fourth Proportional to 6,117.20, 9,167.70 and 5,420.60

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Solution

The fourth proportional to 6,117.20, 9,167.70 and 5,420.60 is: 8,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,117.20 : 9,167.70 = 5,420.60 : x
  2. Step 2: Convert to fraction form
    6,117.20/9,167.70 = 5,420.60/x
  3. Step 3: Cross multiply
    6,117.20x = 9,167.70 × 5,420.60
  4. Step 4: Simplify right side
    6,117.20x = 49,694,434.62
  5. Step 5: Solve for x
    x = 49,694,434.62/6,117.20
  6. Step 6: Final answer
    x = 8,123.72

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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.