Home / 12,440.39-17,167.34-7,135.09

Finding the Fourth Proportional to 12,440.39, 17,167.34 and 7,135.09

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Solution

The fourth proportional to 12,440.39, 17,167.34 and 7,135.09 is: 9,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.39 : 17,167.34 = 7,135.09 : x
  2. Step 2: Convert to fraction form
    12,440.39/17,167.34 = 7,135.09/x
  3. Step 3: Cross multiply
    12,440.39x = 17,167.34 × 7,135.09
  4. Step 4: Simplify right side
    12,440.39x = 122,490,490.88
  5. Step 5: Solve for x
    x = 122,490,490.88/12,440.39
  6. Step 6: Final answer
    x = 9,846.20

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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.