Home / 12,113.88-16,716.69-6,808.92

Finding the Fourth Proportional to 12,113.88, 16,716.69 and 6,808.92

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Solution

The fourth proportional to 12,113.88, 16,716.69 and 6,808.92 is: 9,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.88 : 16,716.69 = 6,808.92 : x
  2. Step 2: Convert to fraction form
    12,113.88/16,716.69 = 6,808.92/x
  3. Step 3: Cross multiply
    12,113.88x = 16,716.69 × 6,808.92
  4. Step 4: Simplify right side
    12,113.88x = 113,822,604.87
  5. Step 5: Solve for x
    x = 113,822,604.87/12,113.88
  6. Step 6: Final answer
    x = 9,396.05

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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.