Home / 13,704.56-20,556.95-3,316.31

Finding the Fourth Proportional to 13,704.56, 20,556.95 and 3,316.31

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Solution

The fourth proportional to 13,704.56, 20,556.95 and 3,316.31 is: 4,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.56 : 20,556.95 = 3,316.31 : x
  2. Step 2: Convert to fraction form
    13,704.56/20,556.95 = 3,316.31/x
  3. Step 3: Cross multiply
    13,704.56x = 20,556.95 × 3,316.31
  4. Step 4: Simplify right side
    13,704.56x = 68,173,253.67
  5. Step 5: Solve for x
    x = 68,173,253.67/13,704.56
  6. Step 6: Final answer
    x = 4,974.49

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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.