Home / 13,073.91-18,042.13-7,105.57

Finding the Fourth Proportional to 13,073.91, 18,042.13 and 7,105.57

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Solution

The fourth proportional to 13,073.91, 18,042.13 and 7,105.57 is: 9,805.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073.91 : 18,042.13 = 7,105.57 : x
  2. Step 2: Convert to fraction form
    13,073.91/18,042.13 = 7,105.57/x
  3. Step 3: Cross multiply
    13,073.91x = 18,042.13 × 7,105.57
  4. Step 4: Simplify right side
    13,073.91x = 128,199,582.14
  5. Step 5: Solve for x
    x = 128,199,582.14/13,073.91
  6. Step 6: Final answer
    x = 9,805.76

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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.