Home / 9,213.80-13,821.71-2,641.05

Finding the Fourth Proportional to 9,213.80, 13,821.71 and 2,641.05

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Solution

The fourth proportional to 9,213.80, 13,821.71 and 2,641.05 is: 3,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.80 : 13,821.71 = 2,641.05 : x
  2. Step 2: Convert to fraction form
    9,213.80/13,821.71 = 2,641.05/x
  3. Step 3: Cross multiply
    9,213.80x = 13,821.71 × 2,641.05
  4. Step 4: Simplify right side
    9,213.80x = 36,503,813.99
  5. Step 5: Solve for x
    x = 36,503,813.99/9,213.80
  6. Step 6: Final answer
    x = 3,961.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.