Home / 8,332.24-11,507.10-7,207.78

Finding the Fourth Proportional to 8,332.24, 11,507.10 and 7,207.78

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Solution

The fourth proportional to 8,332.24, 11,507.10 and 7,207.78 is: 9,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,332.24 : 11,507.10 = 7,207.78 : x
  2. Step 2: Convert to fraction form
    8,332.24/11,507.10 = 7,207.78/x
  3. Step 3: Cross multiply
    8,332.24x = 11,507.10 × 7,207.78
  4. Step 4: Simplify right side
    8,332.24x = 82,940,645.24
  5. Step 5: Solve for x
    x = 82,940,645.24/8,332.24
  6. Step 6: Final answer
    x = 9,954.18

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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.