Home / 11,979.86-16,532.23-6,674.87

Finding the Fourth Proportional to 11,979.86, 16,532.23 and 6,674.87

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Solution

The fourth proportional to 11,979.86, 16,532.23 and 6,674.87 is: 9,211.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.86 : 16,532.23 = 6,674.87 : x
  2. Step 2: Convert to fraction form
    11,979.86/16,532.23 = 6,674.87/x
  3. Step 3: Cross multiply
    11,979.86x = 16,532.23 × 6,674.87
  4. Step 4: Simplify right side
    11,979.86x = 110,350,486.06
  5. Step 5: Solve for x
    x = 110,350,486.06/11,979.86
  6. Step 6: Final answer
    x = 9,211.33

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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.