Home / 7,429.80-11,144.70-6,866.60

Finding the Fourth Proportional to 7,429.80, 11,144.70 and 6,866.60

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Solution

The fourth proportional to 7,429.80, 11,144.70 and 6,866.60 is: 10,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.80 : 11,144.70 = 6,866.60 : x
  2. Step 2: Convert to fraction form
    7,429.80/11,144.70 = 6,866.60/x
  3. Step 3: Cross multiply
    7,429.80x = 11,144.70 × 6,866.60
  4. Step 4: Simplify right side
    7,429.80x = 76,526,197.02
  5. Step 5: Solve for x
    x = 76,526,197.02/7,429.80
  6. Step 6: Final answer
    x = 10,299.90

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Similar ratio
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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.