Home / 7,839.24-11,754.72-3,454.62

Finding the Fourth Proportional to 7,839.24, 11,754.72 and 3,454.62

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Solution

The fourth proportional to 7,839.24, 11,754.72 and 3,454.62 is: 5,180.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.24 : 11,754.72 = 3,454.62 : x
  2. Step 2: Convert to fraction form
    7,839.24/11,754.72 = 3,454.62/x
  3. Step 3: Cross multiply
    7,839.24x = 11,754.72 × 3,454.62
  4. Step 4: Simplify right side
    7,839.24x = 40,608,090.81
  5. Step 5: Solve for x
    x = 40,608,090.81/7,839.24
  6. Step 6: Final answer
    x = 5,180.11

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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.