Home / 12,538.10-17,294.71-8,067.66

Finding the Fourth Proportional to 12,538.10, 17,294.71 and 8,067.66

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Solution

The fourth proportional to 12,538.10, 17,294.71 and 8,067.66 is: 11,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.10 : 17,294.71 = 8,067.66 : x
  2. Step 2: Convert to fraction form
    12,538.10/17,294.71 = 8,067.66/x
  3. Step 3: Cross multiply
    12,538.10x = 17,294.71 × 8,067.66
  4. Step 4: Simplify right side
    12,538.10x = 139,527,840.08
  5. Step 5: Solve for x
    x = 139,527,840.08/12,538.10
  6. Step 6: Final answer
    x = 11,128.31

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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.