Home / 12,804.06-17,671.13-7,139.73

Finding the Fourth Proportional to 12,804.06, 17,671.13 and 7,139.73

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Solution

The fourth proportional to 12,804.06, 17,671.13 and 7,139.73 is: 9,853.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.06 : 17,671.13 = 7,139.73 : x
  2. Step 2: Convert to fraction form
    12,804.06/17,671.13 = 7,139.73/x
  3. Step 3: Cross multiply
    12,804.06x = 17,671.13 × 7,139.73
  4. Step 4: Simplify right side
    12,804.06x = 126,167,096.99
  5. Step 5: Solve for x
    x = 126,167,096.99/12,804.06
  6. Step 6: Final answer
    x = 9,853.68

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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.