Home / 6,165.20-9,247.80-5,189.60

Finding the Fourth Proportional to 6,165.20, 9,247.80 and 5,189.60

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Solution

The fourth proportional to 6,165.20, 9,247.80 and 5,189.60 is: 7,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,165.20 : 9,247.80 = 5,189.60 : x
  2. Step 2: Convert to fraction form
    6,165.20/9,247.80 = 5,189.60/x
  3. Step 3: Cross multiply
    6,165.20x = 9,247.80 × 5,189.60
  4. Step 4: Simplify right side
    6,165.20x = 47,992,382.88
  5. Step 5: Solve for x
    x = 47,992,382.88/6,165.20
  6. Step 6: Final answer
    x = 7,784.40

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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.