Home / 13,953.69-20,926.49-5,186.52

Finding the Fourth Proportional to 13,953.69, 20,926.49 and 5,186.52

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Solution

The fourth proportional to 13,953.69, 20,926.49 and 5,186.52 is: 7,778.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.69 : 20,926.49 = 5,186.52 : x
  2. Step 2: Convert to fraction form
    13,953.69/20,926.49 = 5,186.52/x
  3. Step 3: Cross multiply
    13,953.69x = 20,926.49 × 5,186.52
  4. Step 4: Simplify right side
    13,953.69x = 108,535,632.98
  5. Step 5: Solve for x
    x = 108,535,632.98/13,953.69
  6. Step 6: Final answer
    x = 7,778.27

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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.