Home / 8,632.65-12,949.58-2,789.71

Finding the Fourth Proportional to 8,632.65, 12,949.58 and 2,789.71

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Solution

The fourth proportional to 8,632.65, 12,949.58 and 2,789.71 is: 4,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.65 : 12,949.58 = 2,789.71 : x
  2. Step 2: Convert to fraction form
    8,632.65/12,949.58 = 2,789.71/x
  3. Step 3: Cross multiply
    8,632.65x = 12,949.58 × 2,789.71
  4. Step 4: Simplify right side
    8,632.65x = 36,125,572.82
  5. Step 5: Solve for x
    x = 36,125,572.82/8,632.65
  6. Step 6: Final answer
    x = 4,184.76

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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.