Home / 7,990.98-12,003.75-6,760.86

Finding the Fourth Proportional to 7,990.98, 12,003.75 and 6,760.86

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Solution

The fourth proportional to 7,990.98, 12,003.75 and 6,760.86 is: 10,155.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.98 : 12,003.75 = 6,760.86 : x
  2. Step 2: Convert to fraction form
    7,990.98/12,003.75 = 6,760.86/x
  3. Step 3: Cross multiply
    7,990.98x = 12,003.75 × 6,760.86
  4. Step 4: Simplify right side
    7,990.98x = 81,155,673.23
  5. Step 5: Solve for x
    x = 81,155,673.23/7,990.98
  6. Step 6: Final answer
    x = 10,155.91

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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.