Home / 12,440.57-17,167.70-6,775.16

Finding the Fourth Proportional to 12,440.57, 17,167.70 and 6,775.16

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Solution

The fourth proportional to 12,440.57, 17,167.70 and 6,775.16 is: 9,349.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.57 : 17,167.70 = 6,775.16 : x
  2. Step 2: Convert to fraction form
    12,440.57/17,167.70 = 6,775.16/x
  3. Step 3: Cross multiply
    12,440.57x = 17,167.70 × 6,775.16
  4. Step 4: Simplify right side
    12,440.57x = 116,313,794.62
  5. Step 5: Solve for x
    x = 116,313,794.62/12,440.57
  6. Step 6: Final answer
    x = 9,349.56

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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.