Home / 7,382.48-11,073.60-3,489.68

Finding the Fourth Proportional to 7,382.48, 11,073.60 and 3,489.68

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Solution

The fourth proportional to 7,382.48, 11,073.60 and 3,489.68 is: 5,234.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.48 : 11,073.60 = 3,489.68 : x
  2. Step 2: Convert to fraction form
    7,382.48/11,073.60 = 3,489.68/x
  3. Step 3: Cross multiply
    7,382.48x = 11,073.60 × 3,489.68
  4. Step 4: Simplify right side
    7,382.48x = 38,643,320.45
  5. Step 5: Solve for x
    x = 38,643,320.45/7,382.48
  6. Step 6: Final answer
    x = 5,234.46

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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.