Home / 10,240.75-15,363.56-3,315.25

Finding the Fourth Proportional to 10,240.75, 15,363.56 and 3,315.25

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Solution

The fourth proportional to 10,240.75, 15,363.56 and 3,315.25 is: 4,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.75 : 15,363.56 = 3,315.25 : x
  2. Step 2: Convert to fraction form
    10,240.75/15,363.56 = 3,315.25/x
  3. Step 3: Cross multiply
    10,240.75x = 15,363.56 × 3,315.25
  4. Step 4: Simplify right side
    10,240.75x = 50,934,042.29
  5. Step 5: Solve for x
    x = 50,934,042.29/10,240.75
  6. Step 6: Final answer
    x = 4,973.66

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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.