Home / 18,511.08-27,753.66-6,822.78

Finding the Fourth Proportional to 18,511.08, 27,753.66 and 6,822.78

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Solution

The fourth proportional to 18,511.08, 27,753.66 and 6,822.78 is: 10,229.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.08 : 27,753.66 = 6,822.78 : x
  2. Step 2: Convert to fraction form
    18,511.08/27,753.66 = 6,822.78/x
  3. Step 3: Cross multiply
    18,511.08x = 27,753.66 × 6,822.78
  4. Step 4: Simplify right side
    18,511.08x = 189,357,116.37
  5. Step 5: Solve for x
    x = 189,357,116.37/18,511.08
  6. Step 6: Final answer
    x = 10,229.39

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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.