Home / 9,142.75-13,714.13-3,218.24

Finding the Fourth Proportional to 9,142.75, 13,714.13 and 3,218.24

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Solution

The fourth proportional to 9,142.75, 13,714.13 and 3,218.24 is: 4,827.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142.75 : 13,714.13 = 3,218.24 : x
  2. Step 2: Convert to fraction form
    9,142.75/13,714.13 = 3,218.24/x
  3. Step 3: Cross multiply
    9,142.75x = 13,714.13 × 3,218.24
  4. Step 4: Simplify right side
    9,142.75x = 44,135,345.64
  5. Step 5: Solve for x
    x = 44,135,345.64/9,142.75
  6. Step 6: Final answer
    x = 4,827.36

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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.