Home / 13,112.46-19,654.11-5,317.02

Finding the Fourth Proportional to 13,112.46, 19,654.11 and 5,317.02

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Solution

The fourth proportional to 13,112.46, 19,654.11 and 5,317.02 is: 7,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.46 : 19,654.11 = 5,317.02 : x
  2. Step 2: Convert to fraction form
    13,112.46/19,654.11 = 5,317.02/x
  3. Step 3: Cross multiply
    13,112.46x = 19,654.11 × 5,317.02
  4. Step 4: Simplify right side
    13,112.46x = 104,501,295.95
  5. Step 5: Solve for x
    x = 104,501,295.95/13,112.46
  6. Step 6: Final answer
    x = 7,969.62

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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.