Home / 12,639.67-17,444.29-7,262.09

Finding the Fourth Proportional to 12,639.67, 17,444.29 and 7,262.09

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Solution

The fourth proportional to 12,639.67, 17,444.29 and 7,262.09 is: 10,022.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.67 : 17,444.29 = 7,262.09 : x
  2. Step 2: Convert to fraction form
    12,639.67/17,444.29 = 7,262.09/x
  3. Step 3: Cross multiply
    12,639.67x = 17,444.29 × 7,262.09
  4. Step 4: Simplify right side
    12,639.67x = 126,682,062.13
  5. Step 5: Solve for x
    x = 126,682,062.13/12,639.67
  6. Step 6: Final answer
    x = 10,022.58

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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.