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Finding the Fourth Proportional to 6,757.78, 9,329.85 and 6,339.46

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Solution

The fourth proportional to 6,757.78, 9,329.85 and 6,339.46 is: 8,752.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,757.78 : 9,329.85 = 6,339.46 : x
  2. Step 2: Convert to fraction form
    6,757.78/9,329.85 = 6,339.46/x
  3. Step 3: Cross multiply
    6,757.78x = 9,329.85 × 6,339.46
  4. Step 4: Simplify right side
    6,757.78x = 59,146,210.88
  5. Step 5: Solve for x
    x = 59,146,210.88/6,757.78
  6. Step 6: Final answer
    x = 8,752.31

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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.