Home / 18,278.88-27,422.10-9,511.44

Finding the Fourth Proportional to 18,278.88, 27,422.10 and 9,511.44

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Solution

The fourth proportional to 18,278.88, 27,422.10 and 9,511.44 is: 14,269.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.88 : 27,422.10 = 9,511.44 : x
  2. Step 2: Convert to fraction form
    18,278.88/27,422.10 = 9,511.44/x
  3. Step 3: Cross multiply
    18,278.88x = 27,422.10 × 9,511.44
  4. Step 4: Simplify right side
    18,278.88x = 260,823,658.82
  5. Step 5: Solve for x
    x = 260,823,658.82/18,278.88
  6. Step 6: Final answer
    x = 14,269.13

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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.