Home / 18,708.24-25,825.77-12,338.58

Finding the Fourth Proportional to 18,708.24, 25,825.77 and 12,338.58

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Solution

The fourth proportional to 18,708.24, 25,825.77 and 12,338.58 is: 17,032.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.24 : 25,825.77 = 12,338.58 : x
  2. Step 2: Convert to fraction form
    18,708.24/25,825.77 = 12,338.58/x
  3. Step 3: Cross multiply
    18,708.24x = 25,825.77 × 12,338.58
  4. Step 4: Simplify right side
    18,708.24x = 318,653,329.21
  5. Step 5: Solve for x
    x = 318,653,329.21/18,708.24
  6. Step 6: Final answer
    x = 17,032.78

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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.