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Finding the Fourth Proportional to 7,691.03, 11,519.79 and 5,055.56

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Solution

The fourth proportional to 7,691.03, 11,519.79 and 5,055.56 is: 7,572.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.03 : 11,519.79 = 5,055.56 : x
  2. Step 2: Convert to fraction form
    7,691.03/11,519.79 = 5,055.56/x
  3. Step 3: Cross multiply
    7,691.03x = 11,519.79 × 5,055.56
  4. Step 4: Simplify right side
    7,691.03x = 58,238,989.53
  5. Step 5: Solve for x
    x = 58,238,989.53/7,691.03
  6. Step 6: Final answer
    x = 7,572.33

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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.