Home / 10,515.70-15,772.93-3,941.33

Finding the Fourth Proportional to 10,515.70, 15,772.93 and 3,941.33

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Solution

The fourth proportional to 10,515.70, 15,772.93 and 3,941.33 is: 5,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.70 : 15,772.93 = 3,941.33 : x
  2. Step 2: Convert to fraction form
    10,515.70/15,772.93 = 3,941.33/x
  3. Step 3: Cross multiply
    10,515.70x = 15,772.93 × 3,941.33
  4. Step 4: Simplify right side
    10,515.70x = 62,166,351.78
  5. Step 5: Solve for x
    x = 62,166,351.78/10,515.70
  6. Step 6: Final answer
    x = 5,911.77

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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.