Home / 16,781.51-25,177.26-6,921.38

Finding the Fourth Proportional to 16,781.51, 25,177.26 and 6,921.38

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Solution

The fourth proportional to 16,781.51, 25,177.26 and 6,921.38 is: 10,384.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.51 : 25,177.26 = 6,921.38 : x
  2. Step 2: Convert to fraction form
    16,781.51/25,177.26 = 6,921.38/x
  3. Step 3: Cross multiply
    16,781.51x = 25,177.26 × 6,921.38
  4. Step 4: Simplify right side
    16,781.51x = 174,261,257.93
  5. Step 5: Solve for x
    x = 174,261,257.93/16,781.51
  6. Step 6: Final answer
    x = 10,384.13

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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.