Home / 18,818.19-28,231.56-6,337.80

Finding the Fourth Proportional to 18,818.19, 28,231.56 and 6,337.80

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Solution

The fourth proportional to 18,818.19, 28,231.56 and 6,337.80 is: 9,508.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.19 : 28,231.56 = 6,337.80 : x
  2. Step 2: Convert to fraction form
    18,818.19/28,231.56 = 6,337.80/x
  3. Step 3: Cross multiply
    18,818.19x = 28,231.56 × 6,337.80
  4. Step 4: Simplify right side
    18,818.19x = 178,925,980.97
  5. Step 5: Solve for x
    x = 178,925,980.97/18,818.19
  6. Step 6: Final answer
    x = 9,508.14

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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.