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Finding the Fourth Proportional to 10,571.88, 15,843.82 and 5,630.88

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Solution

The fourth proportional to 10,571.88, 15,843.82 and 5,630.88 is: 8,438.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,571.88 : 15,843.82 = 5,630.88 : x
  2. Step 2: Convert to fraction form
    10,571.88/15,843.82 = 5,630.88/x
  3. Step 3: Cross multiply
    10,571.88x = 15,843.82 × 5,630.88
  4. Step 4: Simplify right side
    10,571.88x = 89,214,649.16
  5. Step 5: Solve for x
    x = 89,214,649.16/10,571.88
  6. Step 6: Final answer
    x = 8,438.86

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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.