Home / 18,945.35-26,144.78-10,447.82

Finding the Fourth Proportional to 18,945.35, 26,144.78 and 10,447.82

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Solution

The fourth proportional to 18,945.35, 26,144.78 and 10,447.82 is: 14,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.35 : 26,144.78 = 10,447.82 : x
  2. Step 2: Convert to fraction form
    18,945.35/26,144.78 = 10,447.82/x
  3. Step 3: Cross multiply
    18,945.35x = 26,144.78 × 10,447.82
  4. Step 4: Simplify right side
    18,945.35x = 273,155,955.38
  5. Step 5: Solve for x
    x = 273,155,955.38/18,945.35
  6. Step 6: Final answer
    x = 14,418.10

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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.