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Finding the Fourth Proportional to 7,137.48, 10,691.28 and 4,527.48

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Solution

The fourth proportional to 7,137.48, 10,691.28 and 4,527.48 is: 6,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.48 : 10,691.28 = 4,527.48 : x
  2. Step 2: Convert to fraction form
    7,137.48/10,691.28 = 4,527.48/x
  3. Step 3: Cross multiply
    7,137.48x = 10,691.28 × 4,527.48
  4. Step 4: Simplify right side
    7,137.48x = 48,404,556.37
  5. Step 5: Solve for x
    x = 48,404,556.37/7,137.48
  6. Step 6: Final answer
    x = 6,781.74

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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.