Home / 18,765.06-28,133.28-11,367.56

Finding the Fourth Proportional to 18,765.06, 28,133.28 and 11,367.56

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Solution

The fourth proportional to 18,765.06, 28,133.28 and 11,367.56 is: 17,042.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.06 : 28,133.28 = 11,367.56 : x
  2. Step 2: Convert to fraction form
    18,765.06/28,133.28 = 11,367.56/x
  3. Step 3: Cross multiply
    18,765.06x = 28,133.28 × 11,367.56
  4. Step 4: Simplify right side
    18,765.06x = 319,806,607.73
  5. Step 5: Solve for x
    x = 319,806,607.73/18,765.06
  6. Step 6: Final answer
    x = 17,042.66

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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.