Home / 8,143.24-12,214.86-3,525.16

Finding the Fourth Proportional to 8,143.24, 12,214.86 and 3,525.16

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Solution

The fourth proportional to 8,143.24, 12,214.86 and 3,525.16 is: 5,287.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.24 : 12,214.86 = 3,525.16 : x
  2. Step 2: Convert to fraction form
    8,143.24/12,214.86 = 3,525.16/x
  3. Step 3: Cross multiply
    8,143.24x = 12,214.86 × 3,525.16
  4. Step 4: Simplify right side
    8,143.24x = 43,059,335.88
  5. Step 5: Solve for x
    x = 43,059,335.88/8,143.24
  6. Step 6: Final answer
    x = 5,287.74

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Half scale
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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.