Home / 16,918.88-25,378.32-5,231.84

Finding the Fourth Proportional to 16,918.88, 25,378.32 and 5,231.84

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Solution

The fourth proportional to 16,918.88, 25,378.32 and 5,231.84 is: 7,847.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.88 : 25,378.32 = 5,231.84 : x
  2. Step 2: Convert to fraction form
    16,918.88/25,378.32 = 5,231.84/x
  3. Step 3: Cross multiply
    16,918.88x = 25,378.32 × 5,231.84
  4. Step 4: Simplify right side
    16,918.88x = 132,775,309.71
  5. Step 5: Solve for x
    x = 132,775,309.71/16,918.88
  6. Step 6: Final answer
    x = 7,847.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.