Home / 13,120.20-19,683.03-7,264.53

Finding the Fourth Proportional to 13,120.20, 19,683.03 and 7,264.53

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Solution

The fourth proportional to 13,120.20, 19,683.03 and 7,264.53 is: 10,898.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.20 : 19,683.03 = 7,264.53 : x
  2. Step 2: Convert to fraction form
    13,120.20/19,683.03 = 7,264.53/x
  3. Step 3: Cross multiply
    13,120.20x = 19,683.03 × 7,264.53
  4. Step 4: Simplify right side
    13,120.20x = 142,987,961.93
  5. Step 5: Solve for x
    x = 142,987,961.93/13,120.20
  6. Step 6: Final answer
    x = 10,898.31

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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.