Home / 7,505.60-11,253.92-3,120.48

Finding the Fourth Proportional to 7,505.60, 11,253.92 and 3,120.48

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Solution

The fourth proportional to 7,505.60, 11,253.92 and 3,120.48 is: 4,678.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,505.60 : 11,253.92 = 3,120.48 : x
  2. Step 2: Convert to fraction form
    7,505.60/11,253.92 = 3,120.48/x
  3. Step 3: Cross multiply
    7,505.60x = 11,253.92 × 3,120.48
  4. Step 4: Simplify right side
    7,505.60x = 35,117,632.28
  5. Step 5: Solve for x
    x = 35,117,632.28/7,505.60
  6. Step 6: Final answer
    x = 4,678.86

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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.