Home / 12,184.68-16,815.96-6,880.80

Finding the Fourth Proportional to 12,184.68, 16,815.96 and 6,880.80

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Solution

The fourth proportional to 12,184.68, 16,815.96 and 6,880.80 is: 9,496.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.68 : 16,815.96 = 6,880.80 : x
  2. Step 2: Convert to fraction form
    12,184.68/16,815.96 = 6,880.80/x
  3. Step 3: Cross multiply
    12,184.68x = 16,815.96 × 6,880.80
  4. Step 4: Simplify right side
    12,184.68x = 115,707,257.57
  5. Step 5: Solve for x
    x = 115,707,257.57/12,184.68
  6. Step 6: Final answer
    x = 9,496.13

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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.