Home / 7,999.19-12,000.72-3,001.61

Finding the Fourth Proportional to 7,999.19, 12,000.72 and 3,001.61

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Solution

The fourth proportional to 7,999.19, 12,000.72 and 3,001.61 is: 4,503.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.19 : 12,000.72 = 3,001.61 : x
  2. Step 2: Convert to fraction form
    7,999.19/12,000.72 = 3,001.61/x
  3. Step 3: Cross multiply
    7,999.19x = 12,000.72 × 3,001.61
  4. Step 4: Simplify right side
    7,999.19x = 36,021,447.00
  5. Step 5: Solve for x
    x = 36,021,447.00/7,999.19
  6. Step 6: Final answer
    x = 4,503.14

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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.