Home / 18,219.43-25,138.41-10,261.65

Finding the Fourth Proportional to 18,219.43, 25,138.41 and 10,261.65

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Solution

The fourth proportional to 18,219.43, 25,138.41 and 10,261.65 is: 14,158.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.43 : 25,138.41 = 10,261.65 : x
  2. Step 2: Convert to fraction form
    18,219.43/25,138.41 = 10,261.65/x
  3. Step 3: Cross multiply
    18,219.43x = 25,138.41 × 10,261.65
  4. Step 4: Simplify right side
    18,219.43x = 257,961,387.98
  5. Step 5: Solve for x
    x = 257,961,387.98/18,219.43
  6. Step 6: Final answer
    x = 14,158.59

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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.