Home / 12,217.72-16,860.46-6,912.42

Finding the Fourth Proportional to 12,217.72, 16,860.46 and 6,912.42

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Solution

The fourth proportional to 12,217.72, 16,860.46 and 6,912.42 is: 9,539.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.72 : 16,860.46 = 6,912.42 : x
  2. Step 2: Convert to fraction form
    12,217.72/16,860.46 = 6,912.42/x
  3. Step 3: Cross multiply
    12,217.72x = 16,860.46 × 6,912.42
  4. Step 4: Simplify right side
    12,217.72x = 116,546,580.91
  5. Step 5: Solve for x
    x = 116,546,580.91/12,217.72
  6. Step 6: Final answer
    x = 9,539.14

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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.