Home / 7,990.11-11,025.93-4,405.65

Finding the Fourth Proportional to 7,990.11, 11,025.93 and 4,405.65

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Solution

The fourth proportional to 7,990.11, 11,025.93 and 4,405.65 is: 6,079.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.11 : 11,025.93 = 4,405.65 : x
  2. Step 2: Convert to fraction form
    7,990.11/11,025.93 = 4,405.65/x
  3. Step 3: Cross multiply
    7,990.11x = 11,025.93 × 4,405.65
  4. Step 4: Simplify right side
    7,990.11x = 48,576,388.50
  5. Step 5: Solve for x
    x = 48,576,388.50/7,990.11
  6. Step 6: Final answer
    x = 6,079.56

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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.