Home / 13,212.74-19,796.81-6,540.34

Finding the Fourth Proportional to 13,212.74, 19,796.81 and 6,540.34

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Solution

The fourth proportional to 13,212.74, 19,796.81 and 6,540.34 is: 9,799.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.74 : 19,796.81 = 6,540.34 : x
  2. Step 2: Convert to fraction form
    13,212.74/19,796.81 = 6,540.34/x
  3. Step 3: Cross multiply
    13,212.74x = 19,796.81 × 6,540.34
  4. Step 4: Simplify right side
    13,212.74x = 129,477,835.17
  5. Step 5: Solve for x
    x = 129,477,835.17/13,212.74
  6. Step 6: Final answer
    x = 9,799.47

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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.