Home / 12,185.68-16,815.30-6,880.96

Finding the Fourth Proportional to 12,185.68, 16,815.30 and 6,880.96

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Solution

The fourth proportional to 12,185.68, 16,815.30 and 6,880.96 is: 9,495.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.68 : 16,815.30 = 6,880.96 : x
  2. Step 2: Convert to fraction form
    12,185.68/16,815.30 = 6,880.96/x
  3. Step 3: Cross multiply
    12,185.68x = 16,815.30 × 6,880.96
  4. Step 4: Simplify right side
    12,185.68x = 115,705,406.69
  5. Step 5: Solve for x
    x = 115,705,406.69/12,185.68
  6. Step 6: Final answer
    x = 9,495.19

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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.