Home / 12,160.14-16,781.07-7,443.51

Finding the Fourth Proportional to 12,160.14, 16,781.07 and 7,443.51

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Solution

The fourth proportional to 12,160.14, 16,781.07 and 7,443.51 is: 10,272.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.14 : 16,781.07 = 7,443.51 : x
  2. Step 2: Convert to fraction form
    12,160.14/16,781.07 = 7,443.51/x
  3. Step 3: Cross multiply
    12,160.14x = 16,781.07 × 7,443.51
  4. Step 4: Simplify right side
    12,160.14x = 124,910,062.36
  5. Step 5: Solve for x
    x = 124,910,062.36/12,160.14
  6. Step 6: Final answer
    x = 10,272.09

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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.