Home / 13,457.40-20,196.54-9,326.36

Finding the Fourth Proportional to 13,457.40, 20,196.54 and 9,326.36

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Solution

The fourth proportional to 13,457.40, 20,196.54 and 9,326.36 is: 13,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.40 : 20,196.54 = 9,326.36 : x
  2. Step 2: Convert to fraction form
    13,457.40/20,196.54 = 9,326.36/x
  3. Step 3: Cross multiply
    13,457.40x = 20,196.54 × 9,326.36
  4. Step 4: Simplify right side
    13,457.40x = 188,360,202.79
  5. Step 5: Solve for x
    x = 188,360,202.79/13,457.40
  6. Step 6: Final answer
    x = 13,996.78

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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.