Home / 13,299.49-18,352.46-7,331.21

Finding the Fourth Proportional to 13,299.49, 18,352.46 and 7,331.21

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Solution

The fourth proportional to 13,299.49, 18,352.46 and 7,331.21 is: 10,116.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.49 : 18,352.46 = 7,331.21 : x
  2. Step 2: Convert to fraction form
    13,299.49/18,352.46 = 7,331.21/x
  3. Step 3: Cross multiply
    13,299.49x = 18,352.46 × 7,331.21
  4. Step 4: Simplify right side
    13,299.49x = 134,545,738.28
  5. Step 5: Solve for x
    x = 134,545,738.28/13,299.49
  6. Step 6: Final answer
    x = 10,116.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.