Home / 15,446.25-21,315.74-8,372.66

Finding the Fourth Proportional to 15,446.25, 21,315.74 and 8,372.66

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Solution

The fourth proportional to 15,446.25, 21,315.74 and 8,372.66 is: 11,554.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,446.25 : 21,315.74 = 8,372.66 : x
  2. Step 2: Convert to fraction form
    15,446.25/21,315.74 = 8,372.66/x
  3. Step 3: Cross multiply
    15,446.25x = 21,315.74 × 8,372.66
  4. Step 4: Simplify right side
    15,446.25x = 178,469,295.23
  5. Step 5: Solve for x
    x = 178,469,295.23/15,446.25
  6. Step 6: Final answer
    x = 11,554.22

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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.