Home / 11,972.21-16,523.12-6,869.61

Finding the Fourth Proportional to 11,972.21, 16,523.12 and 6,869.61

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Solution

The fourth proportional to 11,972.21, 16,523.12 and 6,869.61 is: 9,480.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.21 : 16,523.12 = 6,869.61 : x
  2. Step 2: Convert to fraction form
    11,972.21/16,523.12 = 6,869.61/x
  3. Step 3: Cross multiply
    11,972.21x = 16,523.12 × 6,869.61
  4. Step 4: Simplify right side
    11,972.21x = 113,507,407.56
  5. Step 5: Solve for x
    x = 113,507,407.56/11,972.21
  6. Step 6: Final answer
    x = 9,480.91

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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.