Home / 11,979.84-16,531.11-6,674.55

Finding the Fourth Proportional to 11,979.84, 16,531.11 and 6,674.55

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Solution

The fourth proportional to 11,979.84, 16,531.11 and 6,674.55 is: 9,210.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.84 : 16,531.11 = 6,674.55 : x
  2. Step 2: Convert to fraction form
    11,979.84/16,531.11 = 6,674.55/x
  3. Step 3: Cross multiply
    11,979.84x = 16,531.11 × 6,674.55
  4. Step 4: Simplify right side
    11,979.84x = 110,337,720.25
  5. Step 5: Solve for x
    x = 110,337,720.25/11,979.84
  6. Step 6: Final answer
    x = 9,210.28

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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.