Home / 7,665.15-11,500.56-3,286.02

Finding the Fourth Proportional to 7,665.15, 11,500.56 and 3,286.02

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Solution

The fourth proportional to 7,665.15, 11,500.56 and 3,286.02 is: 4,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.15 : 11,500.56 = 3,286.02 : x
  2. Step 2: Convert to fraction form
    7,665.15/11,500.56 = 3,286.02/x
  3. Step 3: Cross multiply
    7,665.15x = 11,500.56 × 3,286.02
  4. Step 4: Simplify right side
    7,665.15x = 37,791,070.17
  5. Step 5: Solve for x
    x = 37,791,070.17/7,665.15
  6. Step 6: Final answer
    x = 4,930.25

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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.