Home / 10,512.63-15,768.81-2,721.24

Finding the Fourth Proportional to 10,512.63, 15,768.81 and 2,721.24

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Solution

The fourth proportional to 10,512.63, 15,768.81 and 2,721.24 is: 4,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.63 : 15,768.81 = 2,721.24 : x
  2. Step 2: Convert to fraction form
    10,512.63/15,768.81 = 2,721.24/x
  3. Step 3: Cross multiply
    10,512.63x = 15,768.81 × 2,721.24
  4. Step 4: Simplify right side
    10,512.63x = 42,910,716.52
  5. Step 5: Solve for x
    x = 42,910,716.52/10,512.63
  6. Step 6: Final answer
    x = 4,081.83

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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.