Home / 13,321.14-18,382.23-7,351.53

Finding the Fourth Proportional to 13,321.14, 18,382.23 and 7,351.53

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Solution

The fourth proportional to 13,321.14, 18,382.23 and 7,351.53 is: 10,144.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.14 : 18,382.23 = 7,351.53 : x
  2. Step 2: Convert to fraction form
    13,321.14/18,382.23 = 7,351.53/x
  3. Step 3: Cross multiply
    13,321.14x = 18,382.23 × 7,351.53
  4. Step 4: Simplify right side
    13,321.14x = 135,137,515.31
  5. Step 5: Solve for x
    x = 135,137,515.31/13,321.14
  6. Step 6: Final answer
    x = 10,144.59

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1.5x scale

Why These Related Problems?

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