Home / 15,446.43-21,316.05-8,372.88

Finding the Fourth Proportional to 15,446.43, 21,316.05 and 8,372.88

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Solution

The fourth proportional to 15,446.43, 21,316.05 and 8,372.88 is: 11,554.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,446.43 : 21,316.05 = 8,372.88 : x
  2. Step 2: Convert to fraction form
    15,446.43/21,316.05 = 8,372.88/x
  3. Step 3: Cross multiply
    15,446.43x = 21,316.05 × 8,372.88
  4. Step 4: Simplify right side
    15,446.43x = 178,476,728.72
  5. Step 5: Solve for x
    x = 178,476,728.72/15,446.43
  6. Step 6: Final answer
    x = 11,554.56

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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.