Home / 7,963.55-10,990.11-4,426.82

Finding the Fourth Proportional to 7,963.55, 10,990.11 and 4,426.82

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Solution

The fourth proportional to 7,963.55, 10,990.11 and 4,426.82 is: 6,109.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.55 : 10,990.11 = 4,426.82 : x
  2. Step 2: Convert to fraction form
    7,963.55/10,990.11 = 4,426.82/x
  3. Step 3: Cross multiply
    7,963.55x = 10,990.11 × 4,426.82
  4. Step 4: Simplify right side
    7,963.55x = 48,651,183.80
  5. Step 5: Solve for x
    x = 48,651,183.80/7,963.55
  6. Step 6: Final answer
    x = 6,109.24

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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.