Home / 15,363.38-21,198.44-8,649.29

Finding the Fourth Proportional to 15,363.38, 21,198.44 and 8,649.29

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Solution

The fourth proportional to 15,363.38, 21,198.44 and 8,649.29 is: 11,934.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,363.38 : 21,198.44 = 8,649.29 : x
  2. Step 2: Convert to fraction form
    15,363.38/21,198.44 = 8,649.29/x
  3. Step 3: Cross multiply
    15,363.38x = 21,198.44 × 8,649.29
  4. Step 4: Simplify right side
    15,363.38x = 183,351,529.73
  5. Step 5: Solve for x
    x = 183,351,529.73/15,363.38
  6. Step 6: Final answer
    x = 11,934.32

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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.