Home / 9,209.23-12,708.30-5,229.82

Finding the Fourth Proportional to 9,209.23, 12,708.30 and 5,229.82

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Solution

The fourth proportional to 9,209.23, 12,708.30 and 5,229.82 is: 7,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.23 : 12,708.30 = 5,229.82 : x
  2. Step 2: Convert to fraction form
    9,209.23/12,708.30 = 5,229.82/x
  3. Step 3: Cross multiply
    9,209.23x = 12,708.30 × 5,229.82
  4. Step 4: Simplify right side
    9,209.23x = 66,462,121.51
  5. Step 5: Solve for x
    x = 66,462,121.51/9,209.23
  6. Step 6: Final answer
    x = 7,216.90

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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.