Home / 11,269.80-15,550.11-6,423.84

Finding the Fourth Proportional to 11,269.80, 15,550.11 and 6,423.84

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Solution

The fourth proportional to 11,269.80, 15,550.11 and 6,423.84 is: 8,863.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.80 : 15,550.11 = 6,423.84 : x
  2. Step 2: Convert to fraction form
    11,269.80/15,550.11 = 6,423.84/x
  3. Step 3: Cross multiply
    11,269.80x = 15,550.11 × 6,423.84
  4. Step 4: Simplify right side
    11,269.80x = 99,891,418.62
  5. Step 5: Solve for x
    x = 99,891,418.62/11,269.80
  6. Step 6: Final answer
    x = 8,863.64

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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.