Home / 18,945.79-26,145.18-10,879.97

Finding the Fourth Proportional to 18,945.79, 26,145.18 and 10,879.97

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Solution

The fourth proportional to 18,945.79, 26,145.18 and 10,879.97 is: 15,014.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.79 : 26,145.18 = 10,879.97 : x
  2. Step 2: Convert to fraction form
    18,945.79/26,145.18 = 10,879.97/x
  3. Step 3: Cross multiply
    18,945.79x = 26,145.18 × 10,879.97
  4. Step 4: Simplify right side
    18,945.79x = 284,458,719.64
  5. Step 5: Solve for x
    x = 284,458,719.64/18,945.79
  6. Step 6: Final answer
    x = 15,014.35

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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.