Home / 10,825.75-16,239.10-3,430.75

Finding the Fourth Proportional to 10,825.75, 16,239.10 and 3,430.75

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Solution

The fourth proportional to 10,825.75, 16,239.10 and 3,430.75 is: 5,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,825.75 : 16,239.10 = 3,430.75 : x
  2. Step 2: Convert to fraction form
    10,825.75/16,239.10 = 3,430.75/x
  3. Step 3: Cross multiply
    10,825.75x = 16,239.10 × 3,430.75
  4. Step 4: Simplify right side
    10,825.75x = 55,712,292.33
  5. Step 5: Solve for x
    x = 55,712,292.33/10,825.75
  6. Step 6: Final answer
    x = 5,146.28

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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.