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Finding the Fourth Proportional to 6,189.60, 9,273.60 and 5,217.60

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Solution

The fourth proportional to 6,189.60, 9,273.60 and 5,217.60 is: 7,817.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,189.60 : 9,273.60 = 5,217.60 : x
  2. Step 2: Convert to fraction form
    6,189.60/9,273.60 = 5,217.60/x
  3. Step 3: Cross multiply
    6,189.60x = 9,273.60 × 5,217.60
  4. Step 4: Simplify right side
    6,189.60x = 48,385,935.36
  5. Step 5: Solve for x
    x = 48,385,935.36/6,189.60
  6. Step 6: Final answer
    x = 7,817.30

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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.