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Finding the Fourth Proportional to 7,551.32, 11,250.43 and 7,179.54

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Solution

The fourth proportional to 7,551.32, 11,250.43 and 7,179.54 is: 10,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.32 : 11,250.43 = 7,179.54 : x
  2. Step 2: Convert to fraction form
    7,551.32/11,250.43 = 7,179.54/x
  3. Step 3: Cross multiply
    7,551.32x = 11,250.43 × 7,179.54
  4. Step 4: Simplify right side
    7,551.32x = 80,772,912.20
  5. Step 5: Solve for x
    x = 80,772,912.20/7,551.32
  6. Step 6: Final answer
    x = 10,696.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.