Home / 13,563.11-20,329.05-5,239.46

Finding the Fourth Proportional to 13,563.11, 20,329.05 and 5,239.46

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Solution

The fourth proportional to 13,563.11, 20,329.05 and 5,239.46 is: 7,853.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.11 : 20,329.05 = 5,239.46 : x
  2. Step 2: Convert to fraction form
    13,563.11/20,329.05 = 5,239.46/x
  3. Step 3: Cross multiply
    13,563.11x = 20,329.05 × 5,239.46
  4. Step 4: Simplify right side
    13,563.11x = 106,513,244.31
  5. Step 5: Solve for x
    x = 106,513,244.31/13,563.11
  6. Step 6: Final answer
    x = 7,853.16

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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.