Home / 11,965.50-16,526.22-7,979.70

Finding the Fourth Proportional to 11,965.50, 16,526.22 and 7,979.70

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Solution

The fourth proportional to 11,965.50, 16,526.22 and 7,979.70 is: 11,021.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.50 : 16,526.22 = 7,979.70 : x
  2. Step 2: Convert to fraction form
    11,965.50/16,526.22 = 7,979.70/x
  3. Step 3: Cross multiply
    11,965.50x = 16,526.22 × 7,979.70
  4. Step 4: Simplify right side
    11,965.50x = 131,874,277.73
  5. Step 5: Solve for x
    x = 131,874,277.73/11,965.50
  6. Step 6: Final answer
    x = 11,021.21

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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.