Home / 7,999.74-12,005.28-2,806.02

Finding the Fourth Proportional to 7,999.74, 12,005.28 and 2,806.02

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Solution

The fourth proportional to 7,999.74, 12,005.28 and 2,806.02 is: 4,211.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.74 : 12,005.28 = 2,806.02 : x
  2. Step 2: Convert to fraction form
    7,999.74/12,005.28 = 2,806.02/x
  3. Step 3: Cross multiply
    7,999.74x = 12,005.28 × 2,806.02
  4. Step 4: Simplify right side
    7,999.74x = 33,687,055.79
  5. Step 5: Solve for x
    x = 33,687,055.79/7,999.74
  6. Step 6: Final answer
    x = 4,211.02

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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.