Home / 18,143.33-27,206.79-6,456.86

Finding the Fourth Proportional to 18,143.33, 27,206.79 and 6,456.86

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Solution

The fourth proportional to 18,143.33, 27,206.79 and 6,456.86 is: 9,682.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.33 : 27,206.79 = 6,456.86 : x
  2. Step 2: Convert to fraction form
    18,143.33/27,206.79 = 6,456.86/x
  3. Step 3: Cross multiply
    18,143.33x = 27,206.79 × 6,456.86
  4. Step 4: Simplify right side
    18,143.33x = 175,670,434.08
  5. Step 5: Solve for x
    x = 175,670,434.08/18,143.33
  6. Step 6: Final answer
    x = 9,682.37

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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.