Home / 13,324.66-18,387.90-7,356.37

Finding the Fourth Proportional to 13,324.66, 18,387.90 and 7,356.37

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Solution

The fourth proportional to 13,324.66, 18,387.90 and 7,356.37 is: 10,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.66 : 18,387.90 = 7,356.37 : x
  2. Step 2: Convert to fraction form
    13,324.66/18,387.90 = 7,356.37/x
  3. Step 3: Cross multiply
    13,324.66x = 18,387.90 × 7,356.37
  4. Step 4: Simplify right side
    13,324.66x = 135,268,149.95
  5. Step 5: Solve for x
    x = 135,268,149.95/13,324.66
  6. Step 6: Final answer
    x = 10,151.71

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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.