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Finding the Fourth Proportional to 6,513.60, 9,741.60 and 5,476.80

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Solution

The fourth proportional to 6,513.60, 9,741.60 and 5,476.80 is: 8,190.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.60 : 9,741.60 = 5,476.80 : x
  2. Step 2: Convert to fraction form
    6,513.60/9,741.60 = 5,476.80/x
  3. Step 3: Cross multiply
    6,513.60x = 9,741.60 × 5,476.80
  4. Step 4: Simplify right side
    6,513.60x = 53,352,794.88
  5. Step 5: Solve for x
    x = 53,352,794.88/6,513.60
  6. Step 6: Final answer
    x = 8,190.98

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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.