Home / 18,578.53-25,638.42-10,620.97

Finding the Fourth Proportional to 18,578.53, 25,638.42 and 10,620.97

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Solution

The fourth proportional to 18,578.53, 25,638.42 and 10,620.97 is: 14,656.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.53 : 25,638.42 = 10,620.97 : x
  2. Step 2: Convert to fraction form
    18,578.53/25,638.42 = 10,620.97/x
  3. Step 3: Cross multiply
    18,578.53x = 25,638.42 × 10,620.97
  4. Step 4: Simplify right side
    18,578.53x = 272,304,889.67
  5. Step 5: Solve for x
    x = 272,304,889.67/18,578.53
  6. Step 6: Final answer
    x = 14,656.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.