Home / 10,874.02-16,308.60-5,321.80

Finding the Fourth Proportional to 10,874.02, 16,308.60 and 5,321.80

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Solution

The fourth proportional to 10,874.02, 16,308.60 and 5,321.80 is: 7,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874.02 : 16,308.60 = 5,321.80 : x
  2. Step 2: Convert to fraction form
    10,874.02/16,308.60 = 5,321.80/x
  3. Step 3: Cross multiply
    10,874.02x = 16,308.60 × 5,321.80
  4. Step 4: Simplify right side
    10,874.02x = 86,791,107.48
  5. Step 5: Solve for x
    x = 86,791,107.48/10,874.02
  6. Step 6: Final answer
    x = 7,981.51

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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.