Home / 13,073.82-18,042.10-7,105.46

Finding the Fourth Proportional to 13,073.82, 18,042.10 and 7,105.46

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Solution

The fourth proportional to 13,073.82, 18,042.10 and 7,105.46 is: 9,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073.82 : 18,042.10 = 7,105.46 : x
  2. Step 2: Convert to fraction form
    13,073.82/18,042.10 = 7,105.46/x
  3. Step 3: Cross multiply
    13,073.82x = 18,042.10 × 7,105.46
  4. Step 4: Simplify right side
    13,073.82x = 128,197,419.87
  5. Step 5: Solve for x
    x = 128,197,419.87/13,073.82
  6. Step 6: Final answer
    x = 9,805.66

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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.