Home / 7,543.92-11,315.60-3,382.80

Finding the Fourth Proportional to 7,543.92, 11,315.60 and 3,382.80

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Solution

The fourth proportional to 7,543.92, 11,315.60 and 3,382.80 is: 5,074.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,543.92 : 11,315.60 = 3,382.80 : x
  2. Step 2: Convert to fraction form
    7,543.92/11,315.60 = 3,382.80/x
  3. Step 3: Cross multiply
    7,543.92x = 11,315.60 × 3,382.80
  4. Step 4: Simplify right side
    7,543.92x = 38,278,411.68
  5. Step 5: Solve for x
    x = 38,278,411.68/7,543.92
  6. Step 6: Final answer
    x = 5,074.07

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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.