Home / 10,153.45-15,232.78-3,911.79

Finding the Fourth Proportional to 10,153.45, 15,232.78 and 3,911.79

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Solution

The fourth proportional to 10,153.45, 15,232.78 and 3,911.79 is: 5,868.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.45 : 15,232.78 = 3,911.79 : x
  2. Step 2: Convert to fraction form
    10,153.45/15,232.78 = 3,911.79/x
  3. Step 3: Cross multiply
    10,153.45x = 15,232.78 × 3,911.79
  4. Step 4: Simplify right side
    10,153.45x = 59,587,347.96
  5. Step 5: Solve for x
    x = 59,587,347.96/10,153.45
  6. Step 6: Final answer
    x = 5,868.68

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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.