Home / 18,141.12-25,014.42-11,418.50

Finding the Fourth Proportional to 18,141.12, 25,014.42 and 11,418.50

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Solution

The fourth proportional to 18,141.12, 25,014.42 and 11,418.50 is: 15,744.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,141.12 : 25,014.42 = 11,418.50 : x
  2. Step 2: Convert to fraction form
    18,141.12/25,014.42 = 11,418.50/x
  3. Step 3: Cross multiply
    18,141.12x = 25,014.42 × 11,418.50
  4. Step 4: Simplify right side
    18,141.12x = 285,627,154.77
  5. Step 5: Solve for x
    x = 285,627,154.77/18,141.12
  6. Step 6: Final answer
    x = 15,744.74

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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.