Home / 10,729.40-16,098.90-5,180.60

Finding the Fourth Proportional to 10,729.40, 16,098.90 and 5,180.60

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Solution

The fourth proportional to 10,729.40, 16,098.90 and 5,180.60 is: 7,773.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,729.40 : 16,098.90 = 5,180.60 : x
  2. Step 2: Convert to fraction form
    10,729.40/16,098.90 = 5,180.60/x
  3. Step 3: Cross multiply
    10,729.40x = 16,098.90 × 5,180.60
  4. Step 4: Simplify right side
    10,729.40x = 83,401,961.34
  5. Step 5: Solve for x
    x = 83,401,961.34/10,729.40
  6. Step 6: Final answer
    x = 7,773.22

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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.