Home / 13,563.17-20,347.87-5,243.26

Finding the Fourth Proportional to 13,563.17, 20,347.87 and 5,243.26

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Solution

The fourth proportional to 13,563.17, 20,347.87 and 5,243.26 is: 7,866.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.17 : 20,347.87 = 5,243.26 : x
  2. Step 2: Convert to fraction form
    13,563.17/20,347.87 = 5,243.26/x
  3. Step 3: Cross multiply
    13,563.17x = 20,347.87 × 5,243.26
  4. Step 4: Simplify right side
    13,563.17x = 106,689,108.88
  5. Step 5: Solve for x
    x = 106,689,108.88/13,563.17
  6. Step 6: Final answer
    x = 7,866.09

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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.