Home / 12,216.26-16,857.95-6,912.18

Finding the Fourth Proportional to 12,216.26, 16,857.95 and 6,912.18

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Solution

The fourth proportional to 12,216.26, 16,857.95 and 6,912.18 is: 9,538.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.26 : 16,857.95 = 6,912.18 : x
  2. Step 2: Convert to fraction form
    12,216.26/16,857.95 = 6,912.18/x
  3. Step 3: Cross multiply
    12,216.26x = 16,857.95 × 6,912.18
  4. Step 4: Simplify right side
    12,216.26x = 116,525,202.11
  5. Step 5: Solve for x
    x = 116,525,202.11/12,216.26
  6. Step 6: Final answer
    x = 9,538.53

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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.