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Finding the Fourth Proportional to 7,243.92, 10,866.12 and 5,275.56

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Solution

The fourth proportional to 7,243.92, 10,866.12 and 5,275.56 is: 7,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.92 : 10,866.12 = 5,275.56 : x
  2. Step 2: Convert to fraction form
    7,243.92/10,866.12 = 5,275.56/x
  3. Step 3: Cross multiply
    7,243.92x = 10,866.12 × 5,275.56
  4. Step 4: Simplify right side
    7,243.92x = 57,324,868.03
  5. Step 5: Solve for x
    x = 57,324,868.03/7,243.92
  6. Step 6: Final answer
    x = 7,913.51

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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.