Home / 11,979.12-16,531.20-6,674.98

Finding the Fourth Proportional to 11,979.12, 16,531.20 and 6,674.98

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Solution

The fourth proportional to 11,979.12, 16,531.20 and 6,674.98 is: 9,211.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.12 : 16,531.20 = 6,674.98 : x
  2. Step 2: Convert to fraction form
    11,979.12/16,531.20 = 6,674.98/x
  3. Step 3: Cross multiply
    11,979.12x = 16,531.20 × 6,674.98
  4. Step 4: Simplify right side
    11,979.12x = 110,345,429.38
  5. Step 5: Solve for x
    x = 110,345,429.38/11,979.12
  6. Step 6: Final answer
    x = 9,211.48

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Double scale
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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.