Home / 13,904.72-20,857.06-3,516.48

Finding the Fourth Proportional to 13,904.72, 20,857.06 and 3,516.48

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Solution

The fourth proportional to 13,904.72, 20,857.06 and 3,516.48 is: 5,274.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.72 : 20,857.06 = 3,516.48 : x
  2. Step 2: Convert to fraction form
    13,904.72/20,857.06 = 3,516.48/x
  3. Step 3: Cross multiply
    13,904.72x = 20,857.06 × 3,516.48
  4. Step 4: Simplify right side
    13,904.72x = 73,343,434.35
  5. Step 5: Solve for x
    x = 73,343,434.35/13,904.72
  6. Step 6: Final answer
    x = 5,274.71

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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.