Home / 7,999.41-12,002.23-3,318.24

Finding the Fourth Proportional to 7,999.41, 12,002.23 and 3,318.24

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Solution

The fourth proportional to 7,999.41, 12,002.23 and 3,318.24 is: 4,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.41 : 12,002.23 = 3,318.24 : x
  2. Step 2: Convert to fraction form
    7,999.41/12,002.23 = 3,318.24/x
  3. Step 3: Cross multiply
    7,999.41x = 12,002.23 × 3,318.24
  4. Step 4: Simplify right side
    7,999.41x = 39,826,276.41
  5. Step 5: Solve for x
    x = 39,826,276.41/7,999.41
  6. Step 6: Final answer
    x = 4,978.65

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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.