Home / 18,789.06-28,186.80-6,310.29

Finding the Fourth Proportional to 18,789.06, 28,186.80 and 6,310.29

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Solution

The fourth proportional to 18,789.06, 28,186.80 and 6,310.29 is: 9,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.06 : 28,186.80 = 6,310.29 : x
  2. Step 2: Convert to fraction form
    18,789.06/28,186.80 = 6,310.29/x
  3. Step 3: Cross multiply
    18,789.06x = 28,186.80 × 6,310.29
  4. Step 4: Simplify right side
    18,789.06x = 177,866,882.17
  5. Step 5: Solve for x
    x = 177,866,882.17/18,789.06
  6. Step 6: Final answer
    x = 9,466.51

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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.