Home / 12,121.31-16,727.61-6,744.17

Finding the Fourth Proportional to 12,121.31, 16,727.61 and 6,744.17

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Solution

The fourth proportional to 12,121.31, 16,727.61 and 6,744.17 is: 9,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.31 : 16,727.61 = 6,744.17 : x
  2. Step 2: Convert to fraction form
    12,121.31/16,727.61 = 6,744.17/x
  3. Step 3: Cross multiply
    12,121.31x = 16,727.61 × 6,744.17
  4. Step 4: Simplify right side
    12,121.31x = 112,813,761.90
  5. Step 5: Solve for x
    x = 112,813,761.90/12,121.31
  6. Step 6: Final answer
    x = 9,307.06

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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.