Home / 9,213.62-12,714.17-5,181.05

Finding the Fourth Proportional to 9,213.62, 12,714.17 and 5,181.05

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Solution

The fourth proportional to 9,213.62, 12,714.17 and 5,181.05 is: 7,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.62 : 12,714.17 = 5,181.05 : x
  2. Step 2: Convert to fraction form
    9,213.62/12,714.17 = 5,181.05/x
  3. Step 3: Cross multiply
    9,213.62x = 12,714.17 × 5,181.05
  4. Step 4: Simplify right side
    9,213.62x = 65,872,756.36
  5. Step 5: Solve for x
    x = 65,872,756.36/9,213.62
  6. Step 6: Final answer
    x = 7,149.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.