Home / 11,979.68-16,531.52-6,674.22

Finding the Fourth Proportional to 11,979.68, 16,531.52 and 6,674.22

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Solution

The fourth proportional to 11,979.68, 16,531.52 and 6,674.22 is: 9,210.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.68 : 16,531.52 = 6,674.22 : x
  2. Step 2: Convert to fraction form
    11,979.68/16,531.52 = 6,674.22/x
  3. Step 3: Cross multiply
    11,979.68x = 16,531.52 × 6,674.22
  4. Step 4: Simplify right side
    11,979.68x = 110,335,001.41
  5. Step 5: Solve for x
    x = 110,335,001.41/11,979.68
  6. Step 6: Final answer
    x = 9,210.18

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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.