Home / 7,839.72-10,806.35-5,945.22

Finding the Fourth Proportional to 7,839.72, 10,806.35 and 5,945.22

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Solution

The fourth proportional to 7,839.72, 10,806.35 and 5,945.22 is: 8,194.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.72 : 10,806.35 = 5,945.22 : x
  2. Step 2: Convert to fraction form
    7,839.72/10,806.35 = 5,945.22/x
  3. Step 3: Cross multiply
    7,839.72x = 10,806.35 × 5,945.22
  4. Step 4: Simplify right side
    7,839.72x = 64,246,098.42
  5. Step 5: Solve for x
    x = 64,246,098.42/7,839.72
  6. Step 6: Final answer
    x = 8,194.95

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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.