Home / 13,927.74-20,885.99-5,163.36

Finding the Fourth Proportional to 13,927.74, 20,885.99 and 5,163.36

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Solution

The fourth proportional to 13,927.74, 20,885.99 and 5,163.36 is: 7,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.74 : 20,885.99 = 5,163.36 : x
  2. Step 2: Convert to fraction form
    13,927.74/20,885.99 = 5,163.36/x
  3. Step 3: Cross multiply
    13,927.74x = 20,885.99 × 5,163.36
  4. Step 4: Simplify right side
    13,927.74x = 107,841,859.51
  5. Step 5: Solve for x
    x = 107,841,859.51/13,927.74
  6. Step 6: Final answer
    x = 7,742.95

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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.