Home / 26,186.64-39,286.11-8,656.47

Finding the Fourth Proportional to 26,186.64, 39,286.11 and 8,656.47

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Solution

The fourth proportional to 26,186.64, 39,286.11 and 8,656.47 is: 12,986.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,186.64 : 39,286.11 = 8,656.47 : x
  2. Step 2: Convert to fraction form
    26,186.64/39,286.11 = 8,656.47/x
  3. Step 3: Cross multiply
    26,186.64x = 39,286.11 × 8,656.47
  4. Step 4: Simplify right side
    26,186.64x = 340,079,032.63
  5. Step 5: Solve for x
    x = 340,079,032.63/26,186.64
  6. Step 6: Final answer
    x = 12,986.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.