Home / 10,039.72-15,059.68-2,645.24

Finding the Fourth Proportional to 10,039.72, 15,059.68 and 2,645.24

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Solution

The fourth proportional to 10,039.72, 15,059.68 and 2,645.24 is: 3,967.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,039.72 : 15,059.68 = 2,645.24 : x
  2. Step 2: Convert to fraction form
    10,039.72/15,059.68 = 2,645.24/x
  3. Step 3: Cross multiply
    10,039.72x = 15,059.68 × 2,645.24
  4. Step 4: Simplify right side
    10,039.72x = 39,836,467.92
  5. Step 5: Solve for x
    x = 39,836,467.92/10,039.72
  6. Step 6: Final answer
    x = 3,967.89

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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.