Home / 13,610.88-20,417.61-5,291.54

Finding the Fourth Proportional to 13,610.88, 20,417.61 and 5,291.54

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Solution

The fourth proportional to 13,610.88, 20,417.61 and 5,291.54 is: 7,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.88 : 20,417.61 = 5,291.54 : x
  2. Step 2: Convert to fraction form
    13,610.88/20,417.61 = 5,291.54/x
  3. Step 3: Cross multiply
    13,610.88x = 20,417.61 × 5,291.54
  4. Step 4: Simplify right side
    13,610.88x = 108,040,600.02
  5. Step 5: Solve for x
    x = 108,040,600.02/13,610.88
  6. Step 6: Final answer
    x = 7,937.81

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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.