Home / 11,966.86-16,513.97-6,661.56

Finding the Fourth Proportional to 11,966.86, 16,513.97 and 6,661.56

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Solution

The fourth proportional to 11,966.86, 16,513.97 and 6,661.56 is: 9,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.86 : 16,513.97 = 6,661.56 : x
  2. Step 2: Convert to fraction form
    11,966.86/16,513.97 = 6,661.56/x
  3. Step 3: Cross multiply
    11,966.86x = 16,513.97 × 6,661.56
  4. Step 4: Simplify right side
    11,966.86x = 110,008,756.46
  5. Step 5: Solve for x
    x = 110,008,756.46/11,966.86
  6. Step 6: Final answer
    x = 9,192.79

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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.