Home / 18,933.90-26,126.64-10,974.48

Finding the Fourth Proportional to 18,933.90, 26,126.64 and 10,974.48

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Solution

The fourth proportional to 18,933.90, 26,126.64 and 10,974.48 is: 15,143.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.90 : 26,126.64 = 10,974.48 : x
  2. Step 2: Convert to fraction form
    18,933.90/26,126.64 = 10,974.48/x
  3. Step 3: Cross multiply
    18,933.90x = 26,126.64 × 10,974.48
  4. Step 4: Simplify right side
    18,933.90x = 286,726,288.15
  5. Step 5: Solve for x
    x = 286,726,288.15/18,933.90
  6. Step 6: Final answer
    x = 15,143.54

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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.