Home / 16,805.88-25,212.87-5,118.39

Finding the Fourth Proportional to 16,805.88, 25,212.87 and 5,118.39

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Solution

The fourth proportional to 16,805.88, 25,212.87 and 5,118.39 is: 7,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,805.88 : 25,212.87 = 5,118.39 : x
  2. Step 2: Convert to fraction form
    16,805.88/25,212.87 = 5,118.39/x
  3. Step 3: Cross multiply
    16,805.88x = 25,212.87 × 5,118.39
  4. Step 4: Simplify right side
    16,805.88x = 129,049,301.68
  5. Step 5: Solve for x
    x = 129,049,301.68/16,805.88
  6. Step 6: Final answer
    x = 7,678.82

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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.