Home / 8,757.04-13,135.56-5,286.96

Finding the Fourth Proportional to 8,757.04, 13,135.56 and 5,286.96

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Solution

The fourth proportional to 8,757.04, 13,135.56 and 5,286.96 is: 7,930.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.04 : 13,135.56 = 5,286.96 : x
  2. Step 2: Convert to fraction form
    8,757.04/13,135.56 = 5,286.96/x
  3. Step 3: Cross multiply
    8,757.04x = 13,135.56 × 5,286.96
  4. Step 4: Simplify right side
    8,757.04x = 69,447,180.30
  5. Step 5: Solve for x
    x = 69,447,180.30/8,757.04
  6. Step 6: Final answer
    x = 7,930.44

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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.