Home / 18,945.52-26,147.03-11,395.64

Finding the Fourth Proportional to 18,945.52, 26,147.03 and 11,395.64

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Solution

The fourth proportional to 18,945.52, 26,147.03 and 11,395.64 is: 15,727.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.52 : 26,147.03 = 11,395.64 : x
  2. Step 2: Convert to fraction form
    18,945.52/26,147.03 = 11,395.64/x
  3. Step 3: Cross multiply
    18,945.52x = 26,147.03 × 11,395.64
  4. Step 4: Simplify right side
    18,945.52x = 297,962,140.95
  5. Step 5: Solve for x
    x = 297,962,140.95/18,945.52
  6. Step 6: Final answer
    x = 15,727.31

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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.