Home / 10,889.87-16,331.22-3,492.56

Finding the Fourth Proportional to 10,889.87, 16,331.22 and 3,492.56

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Solution

The fourth proportional to 10,889.87, 16,331.22 and 3,492.56 is: 5,237.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.87 : 16,331.22 = 3,492.56 : x
  2. Step 2: Convert to fraction form
    10,889.87/16,331.22 = 3,492.56/x
  3. Step 3: Cross multiply
    10,889.87x = 16,331.22 × 3,492.56
  4. Step 4: Simplify right side
    10,889.87x = 57,037,806.55
  5. Step 5: Solve for x
    x = 57,037,806.55/10,889.87
  6. Step 6: Final answer
    x = 5,237.70

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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.