Home / 11,965.42-16,511.92-6,660.12

Finding the Fourth Proportional to 11,965.42, 16,511.92 and 6,660.12

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Solution

The fourth proportional to 11,965.42, 16,511.92 and 6,660.12 is: 9,190.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.42 : 16,511.92 = 6,660.12 : x
  2. Step 2: Convert to fraction form
    11,965.42/16,511.92 = 6,660.12/x
  3. Step 3: Cross multiply
    11,965.42x = 16,511.92 × 6,660.12
  4. Step 4: Simplify right side
    11,965.42x = 109,971,368.63
  5. Step 5: Solve for x
    x = 109,971,368.63/11,965.42
  6. Step 6: Final answer
    x = 9,190.77

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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.