Home / 18,465.41-27,712.65-6,781.97

Finding the Fourth Proportional to 18,465.41, 27,712.65 and 6,781.97

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Solution

The fourth proportional to 18,465.41, 27,712.65 and 6,781.97 is: 10,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.41 : 27,712.65 = 6,781.97 : x
  2. Step 2: Convert to fraction form
    18,465.41/27,712.65 = 6,781.97/x
  3. Step 3: Cross multiply
    18,465.41x = 27,712.65 × 6,781.97
  4. Step 4: Simplify right side
    18,465.41x = 187,946,360.92
  5. Step 5: Solve for x
    x = 187,946,360.92/18,465.41
  6. Step 6: Final answer
    x = 10,178.29

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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.