Home / 18,942.66-26,139.84-10,876.73

Finding the Fourth Proportional to 18,942.66, 26,139.84 and 10,876.73

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Solution

The fourth proportional to 18,942.66, 26,139.84 and 10,876.73 is: 15,009.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.66 : 26,139.84 = 10,876.73 : x
  2. Step 2: Convert to fraction form
    18,942.66/26,139.84 = 10,876.73/x
  3. Step 3: Cross multiply
    18,942.66x = 26,139.84 × 10,876.73
  4. Step 4: Simplify right side
    18,942.66x = 284,315,851.22
  5. Step 5: Solve for x
    x = 284,315,851.22/18,942.66
  6. Step 6: Final answer
    x = 15,009.29

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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.