Home / 10,003.68-15,005.26-2,607.88

Finding the Fourth Proportional to 10,003.68, 15,005.26 and 2,607.88

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Solution

The fourth proportional to 10,003.68, 15,005.26 and 2,607.88 is: 3,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003.68 : 15,005.26 = 2,607.88 : x
  2. Step 2: Convert to fraction form
    10,003.68/15,005.26 = 2,607.88/x
  3. Step 3: Cross multiply
    10,003.68x = 15,005.26 × 2,607.88
  4. Step 4: Simplify right side
    10,003.68x = 39,131,917.45
  5. Step 5: Solve for x
    x = 39,131,917.45/10,003.68
  6. Step 6: Final answer
    x = 3,911.75

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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.