Home / 11,884.50-16,400.67-6,579.78

Finding the Fourth Proportional to 11,884.50, 16,400.67 and 6,579.78

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Solution

The fourth proportional to 11,884.50, 16,400.67 and 6,579.78 is: 9,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,884.50 : 16,400.67 = 6,579.78 : x
  2. Step 2: Convert to fraction form
    11,884.50/16,400.67 = 6,579.78/x
  3. Step 3: Cross multiply
    11,884.50x = 16,400.67 × 6,579.78
  4. Step 4: Simplify right side
    11,884.50x = 107,912,800.45
  5. Step 5: Solve for x
    x = 107,912,800.45/11,884.50
  6. Step 6: Final answer
    x = 9,080.13

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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.