Home / 18,511.30-27,771.27-5,363.92

Finding the Fourth Proportional to 18,511.30, 27,771.27 and 5,363.92

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Solution

The fourth proportional to 18,511.30, 27,771.27 and 5,363.92 is: 8,047.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.30 : 27,771.27 = 5,363.92 : x
  2. Step 2: Convert to fraction form
    18,511.30/27,771.27 = 5,363.92/x
  3. Step 3: Cross multiply
    18,511.30x = 27,771.27 × 5,363.92
  4. Step 4: Simplify right side
    18,511.30x = 148,962,870.58
  5. Step 5: Solve for x
    x = 148,962,870.58/18,511.30
  6. Step 6: Final answer
    x = 8,047.13

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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.