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Finding the Fourth Proportional to 7,099.72, 10,648.11 and 6,748.48

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Solution

The fourth proportional to 7,099.72, 10,648.11 and 6,748.48 is: 10,121.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.72 : 10,648.11 = 6,748.48 : x
  2. Step 2: Convert to fraction form
    7,099.72/10,648.11 = 6,748.48/x
  3. Step 3: Cross multiply
    7,099.72x = 10,648.11 × 6,748.48
  4. Step 4: Simplify right side
    7,099.72x = 71,858,557.37
  5. Step 5: Solve for x
    x = 71,858,557.37/7,099.72
  6. Step 6: Final answer
    x = 10,121.32

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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.