Home / 10,940.60-16,400.28-8,714.00

Finding the Fourth Proportional to 10,940.60, 16,400.28 and 8,714.00

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Solution

The fourth proportional to 10,940.60, 16,400.28 and 8,714.00 is: 13,062.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,940.60 : 16,400.28 = 8,714.00 : x
  2. Step 2: Convert to fraction form
    10,940.60/16,400.28 = 8,714.00/x
  3. Step 3: Cross multiply
    10,940.60x = 16,400.28 × 8,714.00
  4. Step 4: Simplify right side
    10,940.60x = 142,912,080.92
  5. Step 5: Solve for x
    x = 142,912,080.92/10,940.60
  6. Step 6: Final answer
    x = 13,062.54

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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.