Home / 18,813.12-25,961.22-10,429.44

Finding the Fourth Proportional to 18,813.12, 25,961.22 and 10,429.44

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Solution

The fourth proportional to 18,813.12, 25,961.22 and 10,429.44 is: 14,392.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.12 : 25,961.22 = 10,429.44 : x
  2. Step 2: Convert to fraction form
    18,813.12/25,961.22 = 10,429.44/x
  3. Step 3: Cross multiply
    18,813.12x = 25,961.22 × 10,429.44
  4. Step 4: Simplify right side
    18,813.12x = 270,760,986.32
  5. Step 5: Solve for x
    x = 270,760,986.32/18,813.12
  6. Step 6: Final answer
    x = 14,392.14

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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.