Home / 13,516.52-20,172.26-13,166.60

Finding the Fourth Proportional to 13,516.52, 20,172.26 and 13,166.60

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Solution

The fourth proportional to 13,516.52, 20,172.26 and 13,166.60 is: 19,650.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.52 : 20,172.26 = 13,166.60 : x
  2. Step 2: Convert to fraction form
    13,516.52/20,172.26 = 13,166.60/x
  3. Step 3: Cross multiply
    13,516.52x = 20,172.26 × 13,166.60
  4. Step 4: Simplify right side
    13,516.52x = 265,600,078.52
  5. Step 5: Solve for x
    x = 265,600,078.52/13,516.52
  6. Step 6: Final answer
    x = 19,650.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.