Home / 13,416.36-20,121.60-5,516.93

Finding the Fourth Proportional to 13,416.36, 20,121.60 and 5,516.93

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Solution

The fourth proportional to 13,416.36, 20,121.60 and 5,516.93 is: 8,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.36 : 20,121.60 = 5,516.93 : x
  2. Step 2: Convert to fraction form
    13,416.36/20,121.60 = 5,516.93/x
  3. Step 3: Cross multiply
    13,416.36x = 20,121.60 × 5,516.93
  4. Step 4: Simplify right side
    13,416.36x = 111,009,458.69
  5. Step 5: Solve for x
    x = 111,009,458.69/13,416.36
  6. Step 6: Final answer
    x = 8,274.19

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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.