Home / 8,929.69-13,400.58-3,665.65

Finding the Fourth Proportional to 8,929.69, 13,400.58 and 3,665.65

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Solution

The fourth proportional to 8,929.69, 13,400.58 and 3,665.65 is: 5,500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.69 : 13,400.58 = 3,665.65 : x
  2. Step 2: Convert to fraction form
    8,929.69/13,400.58 = 3,665.65/x
  3. Step 3: Cross multiply
    8,929.69x = 13,400.58 × 3,665.65
  4. Step 4: Simplify right side
    8,929.69x = 49,121,769.07
  5. Step 5: Solve for x
    x = 49,121,769.07/8,929.69
  6. Step 6: Final answer
    x = 5,500.95

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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.