Home / 11,979.77-16,531.92-6,674.63

Finding the Fourth Proportional to 11,979.77, 16,531.92 and 6,674.63

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Solution

The fourth proportional to 11,979.77, 16,531.92 and 6,674.63 is: 9,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.77 : 16,531.92 = 6,674.63 : x
  2. Step 2: Convert to fraction form
    11,979.77/16,531.92 = 6,674.63/x
  3. Step 3: Cross multiply
    11,979.77x = 16,531.92 × 6,674.63
  4. Step 4: Simplify right side
    11,979.77x = 110,344,449.19
  5. Step 5: Solve for x
    x = 110,344,449.19/11,979.77
  6. Step 6: Final answer
    x = 9,210.90

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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.