Home / 18,738.88-25,871.61-11,675.68

Finding the Fourth Proportional to 18,738.88, 25,871.61 and 11,675.68

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Solution

The fourth proportional to 18,738.88, 25,871.61 and 11,675.68 is: 16,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.88 : 25,871.61 = 11,675.68 : x
  2. Step 2: Convert to fraction form
    18,738.88/25,871.61 = 11,675.68/x
  3. Step 3: Cross multiply
    18,738.88x = 25,871.61 × 11,675.68
  4. Step 4: Simplify right side
    18,738.88x = 302,068,639.44
  5. Step 5: Solve for x
    x = 302,068,639.44/18,738.88
  6. Step 6: Final answer
    x = 16,119.89

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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.