Home / 7,738.24-10,676.16-6,340.48

Finding the Fourth Proportional to 7,738.24, 10,676.16 and 6,340.48

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Solution

The fourth proportional to 7,738.24, 10,676.16 and 6,340.48 is: 8,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.24 : 10,676.16 = 6,340.48 : x
  2. Step 2: Convert to fraction form
    7,738.24/10,676.16 = 6,340.48/x
  3. Step 3: Cross multiply
    7,738.24x = 10,676.16 × 6,340.48
  4. Step 4: Simplify right side
    7,738.24x = 67,691,978.96
  5. Step 5: Solve for x
    x = 67,691,978.96/7,738.24
  6. Step 6: Final answer
    x = 8,747.72

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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.