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Finding the Fourth Proportional to 18,998.92, 28,499.28 and 5,853.22

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Solution

The fourth proportional to 18,998.92, 28,499.28 and 5,853.22 is: 8,780.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.92 : 28,499.28 = 5,853.22 : x
  2. Step 2: Convert to fraction form
    18,998.92/28,499.28 = 5,853.22/x
  3. Step 3: Cross multiply
    18,998.92x = 28,499.28 × 5,853.22
  4. Step 4: Simplify right side
    18,998.92x = 166,812,555.68
  5. Step 5: Solve for x
    x = 166,812,555.68/18,998.92
  6. Step 6: Final answer
    x = 8,780.11

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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.