Home / 12,297.64-18,445.78-5,372.12

Finding the Fourth Proportional to 12,297.64, 18,445.78 and 5,372.12

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Solution

The fourth proportional to 12,297.64, 18,445.78 and 5,372.12 is: 8,057.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,297.64 : 18,445.78 = 5,372.12 : x
  2. Step 2: Convert to fraction form
    12,297.64/18,445.78 = 5,372.12/x
  3. Step 3: Cross multiply
    12,297.64x = 18,445.78 × 5,372.12
  4. Step 4: Simplify right side
    12,297.64x = 99,092,943.65
  5. Step 5: Solve for x
    x = 99,092,943.65/12,297.64
  6. Step 6: Final answer
    x = 8,057.88

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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.