Home / 11,967.08-16,513.77-6,661.78

Finding the Fourth Proportional to 11,967.08, 16,513.77 and 6,661.78

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Solution

The fourth proportional to 11,967.08, 16,513.77 and 6,661.78 is: 9,192.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,967.08 : 16,513.77 = 6,661.78 : x
  2. Step 2: Convert to fraction form
    11,967.08/16,513.77 = 6,661.78/x
  3. Step 3: Cross multiply
    11,967.08x = 16,513.77 × 6,661.78
  4. Step 4: Simplify right side
    11,967.08x = 110,011,086.41
  5. Step 5: Solve for x
    x = 110,011,086.41/11,967.08
  6. Step 6: Final answer
    x = 9,192.81

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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.