Home / 12,440.97-17,168.90-7,136.82

Finding the Fourth Proportional to 12,440.97, 17,168.90 and 7,136.82

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Solution

The fourth proportional to 12,440.97, 17,168.90 and 7,136.82 is: 9,849.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.97 : 17,168.90 = 7,136.82 : x
  2. Step 2: Convert to fraction form
    12,440.97/17,168.90 = 7,136.82/x
  3. Step 3: Cross multiply
    12,440.97x = 17,168.90 × 7,136.82
  4. Step 4: Simplify right side
    12,440.97x = 122,531,313.21
  5. Step 5: Solve for x
    x = 122,531,313.21/12,440.97
  6. Step 6: Final answer
    x = 9,849.02

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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.