Home / 13,563.76-20,376.90-13,003.26

Finding the Fourth Proportional to 13,563.76, 20,376.90 and 13,003.26

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Solution

The fourth proportional to 13,563.76, 20,376.90 and 13,003.26 is: 19,534.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.76 : 20,376.90 = 13,003.26 : x
  2. Step 2: Convert to fraction form
    13,563.76/20,376.90 = 13,003.26/x
  3. Step 3: Cross multiply
    13,563.76x = 20,376.90 × 13,003.26
  4. Step 4: Simplify right side
    13,563.76x = 264,966,138.25
  5. Step 5: Solve for x
    x = 264,966,138.25/13,563.76
  6. Step 6: Final answer
    x = 19,534.87

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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.