Home / 8,749.85-13,119.90-5,193.41

Finding the Fourth Proportional to 8,749.85, 13,119.90 and 5,193.41

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Solution

The fourth proportional to 8,749.85, 13,119.90 and 5,193.41 is: 7,787.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.85 : 13,119.90 = 5,193.41 : x
  2. Step 2: Convert to fraction form
    8,749.85/13,119.90 = 5,193.41/x
  3. Step 3: Cross multiply
    8,749.85x = 13,119.90 × 5,193.41
  4. Step 4: Simplify right side
    8,749.85x = 68,137,052.66
  5. Step 5: Solve for x
    x = 68,137,052.66/8,749.85
  6. Step 6: Final answer
    x = 7,787.23

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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.