Home / 13,100.27-19,650.21-3,239.55

Finding the Fourth Proportional to 13,100.27, 19,650.21 and 3,239.55

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Solution

The fourth proportional to 13,100.27, 19,650.21 and 3,239.55 is: 4,859.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.27 : 19,650.21 = 3,239.55 : x
  2. Step 2: Convert to fraction form
    13,100.27/19,650.21 = 3,239.55/x
  3. Step 3: Cross multiply
    13,100.27x = 19,650.21 × 3,239.55
  4. Step 4: Simplify right side
    13,100.27x = 63,657,837.81
  5. Step 5: Solve for x
    x = 63,657,837.81/13,100.27
  6. Step 6: Final answer
    x = 4,859.28

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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.