Home / 7,568.40-11,352.60-4,287.90

Finding the Fourth Proportional to 7,568.40, 11,352.60 and 4,287.90

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Solution

The fourth proportional to 7,568.40, 11,352.60 and 4,287.90 is: 6,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,568.40 : 11,352.60 = 4,287.90 : x
  2. Step 2: Convert to fraction form
    7,568.40/11,352.60 = 4,287.90/x
  3. Step 3: Cross multiply
    7,568.40x = 11,352.60 × 4,287.90
  4. Step 4: Simplify right side
    7,568.40x = 48,678,813.54
  5. Step 5: Solve for x
    x = 48,678,813.54/7,568.40
  6. Step 6: Final answer
    x = 6,431.85

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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.