Home / 12,081.39-16,672.28-6,776.32

Finding the Fourth Proportional to 12,081.39, 16,672.28 and 6,776.32

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Solution

The fourth proportional to 12,081.39, 16,672.28 and 6,776.32 is: 9,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.39 : 16,672.28 = 6,776.32 : x
  2. Step 2: Convert to fraction form
    12,081.39/16,672.28 = 6,776.32/x
  3. Step 3: Cross multiply
    12,081.39x = 16,672.28 × 6,776.32
  4. Step 4: Simplify right side
    12,081.39x = 112,976,704.41
  5. Step 5: Solve for x
    x = 112,976,704.41/12,081.39
  6. Step 6: Final answer
    x = 9,351.30

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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.