Home / 11,988.88-16,544.52-6,611.32

Finding the Fourth Proportional to 11,988.88, 16,544.52 and 6,611.32

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Solution

The fourth proportional to 11,988.88, 16,544.52 and 6,611.32 is: 9,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.88 : 16,544.52 = 6,611.32 : x
  2. Step 2: Convert to fraction form
    11,988.88/16,544.52 = 6,611.32/x
  3. Step 3: Cross multiply
    11,988.88x = 16,544.52 × 6,611.32
  4. Step 4: Simplify right side
    11,988.88x = 109,381,115.97
  5. Step 5: Solve for x
    x = 109,381,115.97/11,988.88
  6. Step 6: Final answer
    x = 9,123.55

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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.