Home / 12,661.22-17,320.62-12,607.92

Finding the Fourth Proportional to 12,661.22, 17,320.62 and 12,607.92

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Solution

The fourth proportional to 12,661.22, 17,320.62 and 12,607.92 is: 17,247.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661.22 : 17,320.62 = 12,607.92 : x
  2. Step 2: Convert to fraction form
    12,661.22/17,320.62 = 12,607.92/x
  3. Step 3: Cross multiply
    12,661.22x = 17,320.62 × 12,607.92
  4. Step 4: Simplify right side
    12,661.22x = 218,376,991.31
  5. Step 5: Solve for x
    x = 218,376,991.31/12,661.22
  6. Step 6: Final answer
    x = 17,247.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.