Home / 18,818.59-28,227.89-6,976.43

Finding the Fourth Proportional to 18,818.59, 28,227.89 and 6,976.43

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Solution

The fourth proportional to 18,818.59, 28,227.89 and 6,976.43 is: 10,464.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.59 : 28,227.89 = 6,976.43 : x
  2. Step 2: Convert to fraction form
    18,818.59/28,227.89 = 6,976.43/x
  3. Step 3: Cross multiply
    18,818.59x = 28,227.89 × 6,976.43
  4. Step 4: Simplify right side
    18,818.59x = 196,929,898.63
  5. Step 5: Solve for x
    x = 196,929,898.63/18,818.59
  6. Step 6: Final answer
    x = 10,464.65

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1.5x scale

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.