Home / 18,143.73-27,216.05-6,456.94

Finding the Fourth Proportional to 18,143.73, 27,216.05 and 6,456.94

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Solution

The fourth proportional to 18,143.73, 27,216.05 and 6,456.94 is: 9,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.73 : 27,216.05 = 6,456.94 : x
  2. Step 2: Convert to fraction form
    18,143.73/27,216.05 = 6,456.94/x
  3. Step 3: Cross multiply
    18,143.73x = 27,216.05 × 6,456.94
  4. Step 4: Simplify right side
    18,143.73x = 175,732,301.56
  5. Step 5: Solve for x
    x = 175,732,301.56/18,143.73
  6. Step 6: Final answer
    x = 9,685.57

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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.