Home / 13,606.52-20,391.42-10,309.28

Finding the Fourth Proportional to 13,606.52, 20,391.42 and 10,309.28

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Solution

The fourth proportional to 13,606.52, 20,391.42 and 10,309.28 is: 15,450.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.52 : 20,391.42 = 10,309.28 : x
  2. Step 2: Convert to fraction form
    13,606.52/20,391.42 = 10,309.28/x
  3. Step 3: Cross multiply
    13,606.52x = 20,391.42 × 10,309.28
  4. Step 4: Simplify right side
    13,606.52x = 210,220,858.38
  5. Step 5: Solve for x
    x = 210,220,858.38/13,606.52
  6. Step 6: Final answer
    x = 15,450.01

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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.