Home / 9,286.20-12,806.61-7,242.57

Finding the Fourth Proportional to 9,286.20, 12,806.61 and 7,242.57

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Solution

The fourth proportional to 9,286.20, 12,806.61 and 7,242.57 is: 9,988.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,286.20 : 12,806.61 = 7,242.57 : x
  2. Step 2: Convert to fraction form
    9,286.20/12,806.61 = 7,242.57/x
  3. Step 3: Cross multiply
    9,286.20x = 12,806.61 × 7,242.57
  4. Step 4: Simplify right side
    9,286.20x = 92,752,769.39
  5. Step 5: Solve for x
    x = 92,752,769.39/9,286.20
  6. Step 6: Final answer
    x = 9,988.24

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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.