Home / 18,453.15-25,458-11,367.27

Finding the Fourth Proportional to 18,453.15, 25,458 and 11,367.27

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Solution

The fourth proportional to 18,453.15, 25,458 and 11,367.27 is: 15,682.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.15 : 25,458 = 11,367.27 : x
  2. Step 2: Convert to fraction form
    18,453.15/25,458 = 11,367.27/x
  3. Step 3: Cross multiply
    18,453.15x = 25,458 × 11,367.27
  4. Step 4: Simplify right side
    18,453.15x = 289,387,959.66
  5. Step 5: Solve for x
    x = 289,387,959.66/18,453.15
  6. Step 6: Final answer
    x = 15,682.31

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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.