Home / 18,558.41-27,838.52-5,411.79

Finding the Fourth Proportional to 18,558.41, 27,838.52 and 5,411.79

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Solution

The fourth proportional to 18,558.41, 27,838.52 and 5,411.79 is: 8,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.41 : 27,838.52 = 5,411.79 : x
  2. Step 2: Convert to fraction form
    18,558.41/27,838.52 = 5,411.79/x
  3. Step 3: Cross multiply
    18,558.41x = 27,838.52 × 5,411.79
  4. Step 4: Simplify right side
    18,558.41x = 150,656,197.09
  5. Step 5: Solve for x
    x = 150,656,197.09/18,558.41
  6. Step 6: Final answer
    x = 8,117.95

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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.