Home / 18,956.63-28,439.00-7,269.75

Finding the Fourth Proportional to 18,956.63, 28,439.00 and 7,269.75

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Solution

The fourth proportional to 18,956.63, 28,439.00 and 7,269.75 is: 10,906.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.63 : 28,439.00 = 7,269.75 : x
  2. Step 2: Convert to fraction form
    18,956.63/28,439.00 = 7,269.75/x
  3. Step 3: Cross multiply
    18,956.63x = 28,439.00 × 7,269.75
  4. Step 4: Simplify right side
    18,956.63x = 206,744,411.16
  5. Step 5: Solve for x
    x = 206,744,411.16/18,956.63
  6. Step 6: Final answer
    x = 10,906.18

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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.