Home / 10,872.78-15,004.44-6,157.08

Finding the Fourth Proportional to 10,872.78, 15,004.44 and 6,157.08

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Solution

The fourth proportional to 10,872.78, 15,004.44 and 6,157.08 is: 8,496.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.78 : 15,004.44 = 6,157.08 : x
  2. Step 2: Convert to fraction form
    10,872.78/15,004.44 = 6,157.08/x
  3. Step 3: Cross multiply
    10,872.78x = 15,004.44 × 6,157.08
  4. Step 4: Simplify right side
    10,872.78x = 92,383,537.44
  5. Step 5: Solve for x
    x = 92,383,537.44/10,872.78
  6. Step 6: Final answer
    x = 8,496.77

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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.