Home / 12,182.09-16,811.28-6,876.77

Finding the Fourth Proportional to 12,182.09, 16,811.28 and 6,876.77

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Solution

The fourth proportional to 12,182.09, 16,811.28 and 6,876.77 is: 9,489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.09 : 16,811.28 = 6,876.77 : x
  2. Step 2: Convert to fraction form
    12,182.09/16,811.28 = 6,876.77/x
  3. Step 3: Cross multiply
    12,182.09x = 16,811.28 × 6,876.77
  4. Step 4: Simplify right side
    12,182.09x = 115,607,221.91
  5. Step 5: Solve for x
    x = 115,607,221.91/12,182.09
  6. Step 6: Final answer
    x = 9,489.94

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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.