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Finding the Fourth Proportional to 8,357.86, 12,536.40 and 2,434.78

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Solution

The fourth proportional to 8,357.86, 12,536.40 and 2,434.78 is: 3,652.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.86 : 12,536.40 = 2,434.78 : x
  2. Step 2: Convert to fraction form
    8,357.86/12,536.40 = 2,434.78/x
  3. Step 3: Cross multiply
    8,357.86x = 12,536.40 × 2,434.78
  4. Step 4: Simplify right side
    8,357.86x = 30,523,375.99
  5. Step 5: Solve for x
    x = 30,523,375.99/8,357.86
  6. Step 6: Final answer
    x = 3,652.06

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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.