Home / 12,232.88-16,881.68-6,643.92

Finding the Fourth Proportional to 12,232.88, 16,881.68 and 6,643.92

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Solution

The fourth proportional to 12,232.88, 16,881.68 and 6,643.92 is: 9,168.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,232.88 : 16,881.68 = 6,643.92 : x
  2. Step 2: Convert to fraction form
    12,232.88/16,881.68 = 6,643.92/x
  3. Step 3: Cross multiply
    12,232.88x = 16,881.68 × 6,643.92
  4. Step 4: Simplify right side
    12,232.88x = 112,160,531.39
  5. Step 5: Solve for x
    x = 112,160,531.39/12,232.88
  6. Step 6: Final answer
    x = 9,168.78

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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.