Home / 8,839.87-12,198.26-5,302.40

Finding the Fourth Proportional to 8,839.87, 12,198.26 and 5,302.40

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Solution

The fourth proportional to 8,839.87, 12,198.26 and 5,302.40 is: 7,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.87 : 12,198.26 = 5,302.40 : x
  2. Step 2: Convert to fraction form
    8,839.87/12,198.26 = 5,302.40/x
  3. Step 3: Cross multiply
    8,839.87x = 12,198.26 × 5,302.40
  4. Step 4: Simplify right side
    8,839.87x = 64,680,006.09
  5. Step 5: Solve for x
    x = 64,680,006.09/8,839.87
  6. Step 6: Final answer
    x = 7,316.85

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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.