Home / 15,469.84-21,348.33-8,396.29

Finding the Fourth Proportional to 15,469.84, 21,348.33 and 8,396.29

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Solution

The fourth proportional to 15,469.84, 21,348.33 and 8,396.29 is: 11,586.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,469.84 : 21,348.33 = 8,396.29 : x
  2. Step 2: Convert to fraction form
    15,469.84/21,348.33 = 8,396.29/x
  3. Step 3: Cross multiply
    15,469.84x = 21,348.33 × 8,396.29
  4. Step 4: Simplify right side
    15,469.84x = 179,246,662.95
  5. Step 5: Solve for x
    x = 179,246,662.95/15,469.84
  6. Step 6: Final answer
    x = 11,586.85

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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.