Home / 13,791.74-19,029.70-9,018.68

Finding the Fourth Proportional to 13,791.74, 19,029.70 and 9,018.68

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Solution

The fourth proportional to 13,791.74, 19,029.70 and 9,018.68 is: 12,443.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.74 : 19,029.70 = 9,018.68 : x
  2. Step 2: Convert to fraction form
    13,791.74/19,029.70 = 9,018.68/x
  3. Step 3: Cross multiply
    13,791.74x = 19,029.70 × 9,018.68
  4. Step 4: Simplify right side
    13,791.74x = 171,622,799.82
  5. Step 5: Solve for x
    x = 171,622,799.82/13,791.74
  6. Step 6: Final answer
    x = 12,443.88

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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.