Home / 12,217.17-16,858.26-6,839.90

Finding the Fourth Proportional to 12,217.17, 16,858.26 and 6,839.90

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Solution

The fourth proportional to 12,217.17, 16,858.26 and 6,839.90 is: 9,438.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.17 : 16,858.26 = 6,839.90 : x
  2. Step 2: Convert to fraction form
    12,217.17/16,858.26 = 6,839.90/x
  3. Step 3: Cross multiply
    12,217.17x = 16,858.26 × 6,839.90
  4. Step 4: Simplify right side
    12,217.17x = 115,308,728.28
  5. Step 5: Solve for x
    x = 115,308,728.28/12,217.17
  6. Step 6: Final answer
    x = 9,438.26

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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.