Home / 13,067.17-18,031.85-7,403.11

Finding the Fourth Proportional to 13,067.17, 18,031.85 and 7,403.11

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Solution

The fourth proportional to 13,067.17, 18,031.85 and 7,403.11 is: 10,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.17 : 18,031.85 = 7,403.11 : x
  2. Step 2: Convert to fraction form
    13,067.17/18,031.85 = 7,403.11/x
  3. Step 3: Cross multiply
    13,067.17x = 18,031.85 × 7,403.11
  4. Step 4: Simplify right side
    13,067.17x = 133,491,714.72
  5. Step 5: Solve for x
    x = 133,491,714.72/13,067.17
  6. Step 6: Final answer
    x = 10,215.81

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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.