Home / 13,704.02-20,556.03-3,315.77

Finding the Fourth Proportional to 13,704.02, 20,556.03 and 3,315.77

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Solution

The fourth proportional to 13,704.02, 20,556.03 and 3,315.77 is: 4,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.02 : 20,556.03 = 3,315.77 : x
  2. Step 2: Convert to fraction form
    13,704.02/20,556.03 = 3,315.77/x
  3. Step 3: Cross multiply
    13,704.02x = 20,556.03 × 3,315.77
  4. Step 4: Simplify right side
    13,704.02x = 68,159,067.59
  5. Step 5: Solve for x
    x = 68,159,067.59/13,704.02
  6. Step 6: Final answer
    x = 4,973.66

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Similar ratio
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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.