Home / 18,664.42-28,002.56-5,516.86

Finding the Fourth Proportional to 18,664.42, 28,002.56 and 5,516.86

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Solution

The fourth proportional to 18,664.42, 28,002.56 and 5,516.86 is: 8,277.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.42 : 28,002.56 = 5,516.86 : x
  2. Step 2: Convert to fraction form
    18,664.42/28,002.56 = 5,516.86/x
  3. Step 3: Cross multiply
    18,664.42x = 28,002.56 × 5,516.86
  4. Step 4: Simplify right side
    18,664.42x = 154,486,203.16
  5. Step 5: Solve for x
    x = 154,486,203.16/18,664.42
  6. Step 6: Final answer
    x = 8,277.04

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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.