Home / 8,839.27-12,195.70-5,697.28

Finding the Fourth Proportional to 8,839.27, 12,195.70 and 5,697.28

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Solution

The fourth proportional to 8,839.27, 12,195.70 and 5,697.28 is: 7,860.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.27 : 12,195.70 = 5,697.28 : x
  2. Step 2: Convert to fraction form
    8,839.27/12,195.70 = 5,697.28/x
  3. Step 3: Cross multiply
    8,839.27x = 12,195.70 × 5,697.28
  4. Step 4: Simplify right side
    8,839.27x = 69,482,317.70
  5. Step 5: Solve for x
    x = 69,482,317.70/8,839.27
  6. Step 6: Final answer
    x = 7,860.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.