Home / 13,649.62-18,834.24-9,180.85

Finding the Fourth Proportional to 13,649.62, 18,834.24 and 9,180.85

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Solution

The fourth proportional to 13,649.62, 18,834.24 and 9,180.85 is: 12,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.62 : 18,834.24 = 9,180.85 : x
  2. Step 2: Convert to fraction form
    13,649.62/18,834.24 = 9,180.85/x
  3. Step 3: Cross multiply
    13,649.62x = 18,834.24 × 9,180.85
  4. Step 4: Simplify right side
    13,649.62x = 172,914,332.30
  5. Step 5: Solve for x
    x = 172,914,332.30/13,649.62
  6. Step 6: Final answer
    x = 12,668.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.