Home / 18,519.46-25,557.47-10,135.96

Finding the Fourth Proportional to 18,519.46, 25,557.47 and 10,135.96

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Solution

The fourth proportional to 18,519.46, 25,557.47 and 10,135.96 is: 13,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.46 : 25,557.47 = 10,135.96 : x
  2. Step 2: Convert to fraction form
    18,519.46/25,557.47 = 10,135.96/x
  3. Step 3: Cross multiply
    18,519.46x = 25,557.47 × 10,135.96
  4. Step 4: Simplify right side
    18,519.46x = 259,049,493.62
  5. Step 5: Solve for x
    x = 259,049,493.62/18,519.46
  6. Step 6: Final answer
    x = 13,987.96

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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.