Home / 12,250.86-18,375.96-3,931.44

Finding the Fourth Proportional to 12,250.86, 18,375.96 and 3,931.44

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Solution

The fourth proportional to 12,250.86, 18,375.96 and 3,931.44 is: 5,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.86 : 18,375.96 = 3,931.44 : x
  2. Step 2: Convert to fraction form
    12,250.86/18,375.96 = 3,931.44/x
  3. Step 3: Cross multiply
    12,250.86x = 18,375.96 × 3,931.44
  4. Step 4: Simplify right side
    12,250.86x = 72,243,984.18
  5. Step 5: Solve for x
    x = 72,243,984.18/12,250.86
  6. Step 6: Final answer
    x = 5,897.05

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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.