Home / 10,208.52-15,315.21-3,968.69

Finding the Fourth Proportional to 10,208.52, 15,315.21 and 3,968.69

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Solution

The fourth proportional to 10,208.52, 15,315.21 and 3,968.69 is: 5,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.52 : 15,315.21 = 3,968.69 : x
  2. Step 2: Convert to fraction form
    10,208.52/15,315.21 = 3,968.69/x
  3. Step 3: Cross multiply
    10,208.52x = 15,315.21 × 3,968.69
  4. Step 4: Simplify right side
    10,208.52x = 60,781,244.20
  5. Step 5: Solve for x
    x = 60,781,244.20/10,208.52
  6. Step 6: Final answer
    x = 5,953.97

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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.