Home / 12,439.10-17,165.76-6,850.10

Finding the Fourth Proportional to 12,439.10, 17,165.76 and 6,850.10

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Solution

The fourth proportional to 12,439.10, 17,165.76 and 6,850.10 is: 9,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.10 : 17,165.76 = 6,850.10 : x
  2. Step 2: Convert to fraction form
    12,439.10/17,165.76 = 6,850.10/x
  3. Step 3: Cross multiply
    12,439.10x = 17,165.76 × 6,850.10
  4. Step 4: Simplify right side
    12,439.10x = 117,587,086.75
  5. Step 5: Solve for x
    x = 117,587,086.75/12,439.10
  6. Step 6: Final answer
    x = 9,453.03

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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.