Home / 8,945.91-13,418.87-2,789.91

Finding the Fourth Proportional to 8,945.91, 13,418.87 and 2,789.91

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Solution

The fourth proportional to 8,945.91, 13,418.87 and 2,789.91 is: 4,184.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.91 : 13,418.87 = 2,789.91 : x
  2. Step 2: Convert to fraction form
    8,945.91/13,418.87 = 2,789.91/x
  3. Step 3: Cross multiply
    8,945.91x = 13,418.87 × 2,789.91
  4. Step 4: Simplify right side
    8,945.91x = 37,437,425.65
  5. Step 5: Solve for x
    x = 37,437,425.65/8,945.91
  6. Step 6: Final answer
    x = 4,184.87

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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.