Home / 7,990.69-11,987.76-3,060.33

Finding the Fourth Proportional to 7,990.69, 11,987.76 and 3,060.33

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Solution

The fourth proportional to 7,990.69, 11,987.76 and 3,060.33 is: 4,591.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.69 : 11,987.76 = 3,060.33 : x
  2. Step 2: Convert to fraction form
    7,990.69/11,987.76 = 3,060.33/x
  3. Step 3: Cross multiply
    7,990.69x = 11,987.76 × 3,060.33
  4. Step 4: Simplify right side
    7,990.69x = 36,686,501.56
  5. Step 5: Solve for x
    x = 36,686,501.56/7,990.69
  6. Step 6: Final answer
    x = 4,591.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.