Home / 18,945.34-26,144.78-10,447.49

Finding the Fourth Proportional to 18,945.34, 26,144.78 and 10,447.49

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Solution

The fourth proportional to 18,945.34, 26,144.78 and 10,447.49 is: 14,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.34 : 26,144.78 = 10,447.49 : x
  2. Step 2: Convert to fraction form
    18,945.34/26,144.78 = 10,447.49/x
  3. Step 3: Cross multiply
    18,945.34x = 26,144.78 × 10,447.49
  4. Step 4: Simplify right side
    18,945.34x = 273,147,327.60
  5. Step 5: Solve for x
    x = 273,147,327.60/18,945.34
  6. Step 6: Final answer
    x = 14,417.65

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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.