Home / 13,708.78-20,534.37-13,553.26

Finding the Fourth Proportional to 13,708.78, 20,534.37 and 13,553.26

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Solution

The fourth proportional to 13,708.78, 20,534.37 and 13,553.26 is: 20,301.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.78 : 20,534.37 = 13,553.26 : x
  2. Step 2: Convert to fraction form
    13,708.78/20,534.37 = 13,553.26/x
  3. Step 3: Cross multiply
    13,708.78x = 20,534.37 × 13,553.26
  4. Step 4: Simplify right side
    13,708.78x = 278,307,655.55
  5. Step 5: Solve for x
    x = 278,307,655.55/13,708.78
  6. Step 6: Final answer
    x = 20,301.42

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1.5x scale

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.