Home / 18,789.29-28,177.38-6,306.65

Finding the Fourth Proportional to 18,789.29, 28,177.38 and 6,306.65

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Solution

The fourth proportional to 18,789.29, 28,177.38 and 6,306.65 is: 9,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.29 : 28,177.38 = 6,306.65 : x
  2. Step 2: Convert to fraction form
    18,789.29/28,177.38 = 6,306.65/x
  3. Step 3: Cross multiply
    18,789.29x = 28,177.38 × 6,306.65
  4. Step 4: Simplify right side
    18,789.29x = 177,704,732.69
  5. Step 5: Solve for x
    x = 177,704,732.69/18,789.29
  6. Step 6: Final answer
    x = 9,457.77

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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.