Home / 9,209.57-12,708.72-5,230.13

Finding the Fourth Proportional to 9,209.57, 12,708.72 and 5,230.13

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Solution

The fourth proportional to 9,209.57, 12,708.72 and 5,230.13 is: 7,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.57 : 12,708.72 = 5,230.13 : x
  2. Step 2: Convert to fraction form
    9,209.57/12,708.72 = 5,230.13/x
  3. Step 3: Cross multiply
    9,209.57x = 12,708.72 × 5,230.13
  4. Step 4: Simplify right side
    9,209.57x = 66,468,194.19
  5. Step 5: Solve for x
    x = 66,468,194.19/9,209.57
  6. Step 6: Final answer
    x = 7,217.30

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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.