Home / 18,219.31-25,142.97-10,261.82

Finding the Fourth Proportional to 18,219.31, 25,142.97 and 10,261.82

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Solution

The fourth proportional to 18,219.31, 25,142.97 and 10,261.82 is: 14,161.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.31 : 25,142.97 = 10,261.82 : x
  2. Step 2: Convert to fraction form
    18,219.31/25,142.97 = 10,261.82/x
  3. Step 3: Cross multiply
    18,219.31x = 25,142.97 × 10,261.82
  4. Step 4: Simplify right side
    18,219.31x = 258,012,455.38
  5. Step 5: Solve for x
    x = 258,012,455.38/18,219.31
  6. Step 6: Final answer
    x = 14,161.49

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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.