Home / 10,753.60-16,108.80-6,131.20

Finding the Fourth Proportional to 10,753.60, 16,108.80 and 6,131.20

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Solution

The fourth proportional to 10,753.60, 16,108.80 and 6,131.20 is: 9,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,753.60 : 16,108.80 = 6,131.20 : x
  2. Step 2: Convert to fraction form
    10,753.60/16,108.80 = 6,131.20/x
  3. Step 3: Cross multiply
    10,753.60x = 16,108.80 × 6,131.20
  4. Step 4: Simplify right side
    10,753.60x = 98,766,274.56
  5. Step 5: Solve for x
    x = 98,766,274.56/10,753.60
  6. Step 6: Final answer
    x = 9,184.48

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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.