Home / 13,880.43-20,765.31-12,053.07

Finding the Fourth Proportional to 13,880.43, 20,765.31 and 12,053.07

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Solution

The fourth proportional to 13,880.43, 20,765.31 and 12,053.07 is: 18,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.43 : 20,765.31 = 12,053.07 : x
  2. Step 2: Convert to fraction form
    13,880.43/20,765.31 = 12,053.07/x
  3. Step 3: Cross multiply
    13,880.43x = 20,765.31 × 12,053.07
  4. Step 4: Simplify right side
    13,880.43x = 250,285,735.00
  5. Step 5: Solve for x
    x = 250,285,735.00/13,880.43
  6. Step 6: Final answer
    x = 18,031.55

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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.