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Finding the Fourth Proportional to 7,138.52, 10,756.52 and 5,868.44

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Solution

The fourth proportional to 7,138.52, 10,756.52 and 5,868.44 is: 8,842.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.52 : 10,756.52 = 5,868.44 : x
  2. Step 2: Convert to fraction form
    7,138.52/10,756.52 = 5,868.44/x
  3. Step 3: Cross multiply
    7,138.52x = 10,756.52 × 5,868.44
  4. Step 4: Simplify right side
    7,138.52x = 63,123,992.23
  5. Step 5: Solve for x
    x = 63,123,992.23/7,138.52
  6. Step 6: Final answer
    x = 8,842.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.