Home / 6,513.12-9,769.68-3,230.28

Finding the Fourth Proportional to 6,513.12, 9,769.68 and 3,230.28

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Solution

The fourth proportional to 6,513.12, 9,769.68 and 3,230.28 is: 4,845.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.12 : 9,769.68 = 3,230.28 : x
  2. Step 2: Convert to fraction form
    6,513.12/9,769.68 = 3,230.28/x
  3. Step 3: Cross multiply
    6,513.12x = 9,769.68 × 3,230.28
  4. Step 4: Simplify right side
    6,513.12x = 31,558,801.91
  5. Step 5: Solve for x
    x = 31,558,801.91/6,513.12
  6. Step 6: Final answer
    x = 4,845.42

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Double scale
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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.