Home / 10,138.73-15,208.64-3,213.77

Finding the Fourth Proportional to 10,138.73, 15,208.64 and 3,213.77

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Solution

The fourth proportional to 10,138.73, 15,208.64 and 3,213.77 is: 4,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.73 : 15,208.64 = 3,213.77 : x
  2. Step 2: Convert to fraction form
    10,138.73/15,208.64 = 3,213.77/x
  3. Step 3: Cross multiply
    10,138.73x = 15,208.64 × 3,213.77
  4. Step 4: Simplify right side
    10,138.73x = 48,877,054.90
  5. Step 5: Solve for x
    x = 48,877,054.90/10,138.73
  6. Step 6: Final answer
    x = 4,820.83

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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.