Home / 18,223.32-27,320.27-7,686.54

Finding the Fourth Proportional to 18,223.32, 27,320.27 and 7,686.54

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Solution

The fourth proportional to 18,223.32, 27,320.27 and 7,686.54 is: 11,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,223.32 : 27,320.27 = 7,686.54 : x
  2. Step 2: Convert to fraction form
    18,223.32/27,320.27 = 7,686.54/x
  3. Step 3: Cross multiply
    18,223.32x = 27,320.27 × 7,686.54
  4. Step 4: Simplify right side
    18,223.32x = 209,998,309.73
  5. Step 5: Solve for x
    x = 209,998,309.73/18,223.32
  6. Step 6: Final answer
    x = 11,523.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.