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Finding the Fourth Proportional to 7,352.92, 11,027.22 and 7,278.40

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Solution

The fourth proportional to 7,352.92, 11,027.22 and 7,278.40 is: 10,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,352.92 : 11,027.22 = 7,278.40 : x
  2. Step 2: Convert to fraction form
    7,352.92/11,027.22 = 7,278.40/x
  3. Step 3: Cross multiply
    7,352.92x = 11,027.22 × 7,278.40
  4. Step 4: Simplify right side
    7,352.92x = 80,260,518.05
  5. Step 5: Solve for x
    x = 80,260,518.05/7,352.92
  6. Step 6: Final answer
    x = 10,915.46

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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.