Home / 8,515.72-12,773.58-3,585.25

Finding the Fourth Proportional to 8,515.72, 12,773.58 and 3,585.25

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Solution

The fourth proportional to 8,515.72, 12,773.58 and 3,585.25 is: 5,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.72 : 12,773.58 = 3,585.25 : x
  2. Step 2: Convert to fraction form
    8,515.72/12,773.58 = 3,585.25/x
  3. Step 3: Cross multiply
    8,515.72x = 12,773.58 × 3,585.25
  4. Step 4: Simplify right side
    8,515.72x = 45,796,477.70
  5. Step 5: Solve for x
    x = 45,796,477.70/8,515.72
  6. Step 6: Final answer
    x = 5,377.88

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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.