Home / 11,988.14-16,523.80-8,007.80

Finding the Fourth Proportional to 11,988.14, 16,523.80 and 8,007.80

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Solution

The fourth proportional to 11,988.14, 16,523.80 and 8,007.80 is: 11,037.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.14 : 16,523.80 = 8,007.80 : x
  2. Step 2: Convert to fraction form
    11,988.14/16,523.80 = 8,007.80/x
  3. Step 3: Cross multiply
    11,988.14x = 16,523.80 × 8,007.80
  4. Step 4: Simplify right side
    11,988.14x = 132,319,183.00
  5. Step 5: Solve for x
    x = 132,319,183.00/11,988.14
  6. Step 6: Final answer
    x = 11,037.51

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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.