Home / 7,999.42-11,999.49-2,452.36

Finding the Fourth Proportional to 7,999.42, 11,999.49 and 2,452.36

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Solution

The fourth proportional to 7,999.42, 11,999.49 and 2,452.36 is: 3,678.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.42 : 11,999.49 = 2,452.36 : x
  2. Step 2: Convert to fraction form
    7,999.42/11,999.49 = 2,452.36/x
  3. Step 3: Cross multiply
    7,999.42x = 11,999.49 × 2,452.36
  4. Step 4: Simplify right side
    7,999.42x = 29,427,069.30
  5. Step 5: Solve for x
    x = 29,427,069.30/7,999.42
  6. Step 6: Final answer
    x = 3,678.65

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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.