Home / 11,818.20-17,727.30-4,892.70

Finding the Fourth Proportional to 11,818.20, 17,727.30 and 4,892.70

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Solution

The fourth proportional to 11,818.20, 17,727.30 and 4,892.70 is: 7,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.20 : 17,727.30 = 4,892.70 : x
  2. Step 2: Convert to fraction form
    11,818.20/17,727.30 = 4,892.70/x
  3. Step 3: Cross multiply
    11,818.20x = 17,727.30 × 4,892.70
  4. Step 4: Simplify right side
    11,818.20x = 86,734,360.71
  5. Step 5: Solve for x
    x = 86,734,360.71/11,818.20
  6. Step 6: Final answer
    x = 7,339.05

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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.