Home / 18,545.88-27,821.70-6,231

Finding the Fourth Proportional to 18,545.88, 27,821.70 and 6,231

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Solution

The fourth proportional to 18,545.88, 27,821.70 and 6,231 is: 9,347.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.88 : 27,821.70 = 6,231 : x
  2. Step 2: Convert to fraction form
    18,545.88/27,821.70 = 6,231/x
  3. Step 3: Cross multiply
    18,545.88x = 27,821.70 × 6,231
  4. Step 4: Simplify right side
    18,545.88x = 173,357,012.70
  5. Step 5: Solve for x
    x = 173,357,012.70/18,545.88
  6. Step 6: Final answer
    x = 9,347.47

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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.