Home / 6,963.08-9,609.55-3,978.85

Finding the Fourth Proportional to 6,963.08, 9,609.55 and 3,978.85

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Solution

The fourth proportional to 6,963.08, 9,609.55 and 3,978.85 is: 5,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,963.08 : 9,609.55 = 3,978.85 : x
  2. Step 2: Convert to fraction form
    6,963.08/9,609.55 = 3,978.85/x
  3. Step 3: Cross multiply
    6,963.08x = 9,609.55 × 3,978.85
  4. Step 4: Simplify right side
    6,963.08x = 38,234,909.97
  5. Step 5: Solve for x
    x = 38,234,909.97/6,963.08
  6. Step 6: Final answer
    x = 5,491.10

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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.