Home / 11,979.88-16,531.98-6,674.64

Finding the Fourth Proportional to 11,979.88, 16,531.98 and 6,674.64

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Solution

The fourth proportional to 11,979.88, 16,531.98 and 6,674.64 is: 9,210.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.88 : 16,531.98 = 6,674.64 : x
  2. Step 2: Convert to fraction form
    11,979.88/16,531.98 = 6,674.64/x
  3. Step 3: Cross multiply
    11,979.88x = 16,531.98 × 6,674.64
  4. Step 4: Simplify right side
    11,979.88x = 110,345,014.99
  5. Step 5: Solve for x
    x = 110,345,014.99/11,979.88
  6. Step 6: Final answer
    x = 9,210.86

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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.