Home / 12,217.64-16,860.68-6,912.35

Finding the Fourth Proportional to 12,217.64, 16,860.68 and 6,912.35

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Solution

The fourth proportional to 12,217.64, 16,860.68 and 6,912.35 is: 9,539.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.64 : 16,860.68 = 6,912.35 : x
  2. Step 2: Convert to fraction form
    12,217.64/16,860.68 = 6,912.35/x
  3. Step 3: Cross multiply
    12,217.64x = 16,860.68 × 6,912.35
  4. Step 4: Simplify right side
    12,217.64x = 116,546,854.38
  5. Step 5: Solve for x
    x = 116,546,854.38/12,217.64
  6. Step 6: Final answer
    x = 9,539.23

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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.