Home / 18,945.46-26,144.91-10,447.90

Finding the Fourth Proportional to 18,945.46, 26,144.91 and 10,447.90

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Solution

The fourth proportional to 18,945.46, 26,144.91 and 10,447.90 is: 14,418.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.46 : 26,144.91 = 10,447.90 : x
  2. Step 2: Convert to fraction form
    18,945.46/26,144.91 = 10,447.90/x
  3. Step 3: Cross multiply
    18,945.46x = 26,144.91 × 10,447.90
  4. Step 4: Simplify right side
    18,945.46x = 273,159,339.83
  5. Step 5: Solve for x
    x = 273,159,339.83/18,945.46
  6. Step 6: Final answer
    x = 14,418.19

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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.