Home / 8,513.12-12,769.68-3,586.16

Finding the Fourth Proportional to 8,513.12, 12,769.68 and 3,586.16

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Solution

The fourth proportional to 8,513.12, 12,769.68 and 3,586.16 is: 5,379.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.12 : 12,769.68 = 3,586.16 : x
  2. Step 2: Convert to fraction form
    8,513.12/12,769.68 = 3,586.16/x
  3. Step 3: Cross multiply
    8,513.12x = 12,769.68 × 3,586.16
  4. Step 4: Simplify right side
    8,513.12x = 45,794,115.63
  5. Step 5: Solve for x
    x = 45,794,115.63/8,513.12
  6. Step 6: Final answer
    x = 5,379.24

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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.