Home / 10,721.75-16,100.43-7,234.19

Finding the Fourth Proportional to 10,721.75, 16,100.43 and 7,234.19

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Solution

The fourth proportional to 10,721.75, 16,100.43 and 7,234.19 is: 10,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.75 : 16,100.43 = 7,234.19 : x
  2. Step 2: Convert to fraction form
    10,721.75/16,100.43 = 7,234.19/x
  3. Step 3: Cross multiply
    10,721.75x = 16,100.43 × 7,234.19
  4. Step 4: Simplify right side
    10,721.75x = 116,473,489.20
  5. Step 5: Solve for x
    x = 116,473,489.20/10,721.75
  6. Step 6: Final answer
    x = 10,863.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.