Home / 7,754.20-11,676.89-5,578.13

Finding the Fourth Proportional to 7,754.20, 11,676.89 and 5,578.13

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Solution

The fourth proportional to 7,754.20, 11,676.89 and 5,578.13 is: 8,400.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,754.20 : 11,676.89 = 5,578.13 : x
  2. Step 2: Convert to fraction form
    7,754.20/11,676.89 = 5,578.13/x
  3. Step 3: Cross multiply
    7,754.20x = 11,676.89 × 5,578.13
  4. Step 4: Simplify right side
    7,754.20x = 65,135,253.55
  5. Step 5: Solve for x
    x = 65,135,253.55/7,754.20
  6. Step 6: Final answer
    x = 8,400.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.