Home / 18,768.06-28,149.15-6,288.30

Finding the Fourth Proportional to 18,768.06, 28,149.15 and 6,288.30

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Solution

The fourth proportional to 18,768.06, 28,149.15 and 6,288.30 is: 9,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.06 : 28,149.15 = 6,288.30 : x
  2. Step 2: Convert to fraction form
    18,768.06/28,149.15 = 6,288.30/x
  3. Step 3: Cross multiply
    18,768.06x = 28,149.15 × 6,288.30
  4. Step 4: Simplify right side
    18,768.06x = 177,010,299.95
  5. Step 5: Solve for x
    x = 177,010,299.95/18,768.06
  6. Step 6: Final answer
    x = 9,431.46

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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.