Home / 10,729.18-16,099.26-5,113.20

Finding the Fourth Proportional to 10,729.18, 16,099.26 and 5,113.20

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Solution

The fourth proportional to 10,729.18, 16,099.26 and 5,113.20 is: 7,672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,729.18 : 16,099.26 = 5,113.20 : x
  2. Step 2: Convert to fraction form
    10,729.18/16,099.26 = 5,113.20/x
  3. Step 3: Cross multiply
    10,729.18x = 16,099.26 × 5,113.20
  4. Step 4: Simplify right side
    10,729.18x = 82,318,736.23
  5. Step 5: Solve for x
    x = 82,318,736.23/10,729.18
  6. Step 6: Final answer
    x = 7,672.42

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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.