Home / 7,669.20-11,487.60-6,016.80

Finding the Fourth Proportional to 7,669.20, 11,487.60 and 6,016.80

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Solution

The fourth proportional to 7,669.20, 11,487.60 and 6,016.80 is: 9,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,669.20 : 11,487.60 = 6,016.80 : x
  2. Step 2: Convert to fraction form
    7,669.20/11,487.60 = 6,016.80/x
  3. Step 3: Cross multiply
    7,669.20x = 11,487.60 × 6,016.80
  4. Step 4: Simplify right side
    7,669.20x = 69,118,591.68
  5. Step 5: Solve for x
    x = 69,118,591.68/7,669.20
  6. Step 6: Final answer
    x = 9,012.49

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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.