Home / 10,571.61-15,856.20-2,781.03

Finding the Fourth Proportional to 10,571.61, 15,856.20 and 2,781.03

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Solution

The fourth proportional to 10,571.61, 15,856.20 and 2,781.03 is: 4,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,571.61 : 15,856.20 = 2,781.03 : x
  2. Step 2: Convert to fraction form
    10,571.61/15,856.20 = 2,781.03/x
  3. Step 3: Cross multiply
    10,571.61x = 15,856.20 × 2,781.03
  4. Step 4: Simplify right side
    10,571.61x = 44,096,553.98
  5. Step 5: Solve for x
    x = 44,096,553.98/10,571.61
  6. Step 6: Final answer
    x = 4,171.22

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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.