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Finding the Fourth Proportional to 7,999.40, 12,000.51 and 3,846.93

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Solution

The fourth proportional to 7,999.40, 12,000.51 and 3,846.93 is: 5,771.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.40 : 12,000.51 = 3,846.93 : x
  2. Step 2: Convert to fraction form
    7,999.40/12,000.51 = 3,846.93/x
  3. Step 3: Cross multiply
    7,999.40x = 12,000.51 × 3,846.93
  4. Step 4: Simplify right side
    7,999.40x = 46,165,121.93
  5. Step 5: Solve for x
    x = 46,165,121.93/7,999.40
  6. Step 6: Final answer
    x = 5,771.07

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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.