Home / 11,130.10-16,691.20-4,108.61

Finding the Fourth Proportional to 11,130.10, 16,691.20 and 4,108.61

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Solution

The fourth proportional to 11,130.10, 16,691.20 and 4,108.61 is: 6,161.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.10 : 16,691.20 = 4,108.61 : x
  2. Step 2: Convert to fraction form
    11,130.10/16,691.20 = 4,108.61/x
  3. Step 3: Cross multiply
    11,130.10x = 16,691.20 × 4,108.61
  4. Step 4: Simplify right side
    11,130.10x = 68,577,662.69
  5. Step 5: Solve for x
    x = 68,577,662.69/11,130.10
  6. Step 6: Final answer
    x = 6,161.46

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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.