Home / 18,953.21-26,155.14-10,996.81

Finding the Fourth Proportional to 18,953.21, 26,155.14 and 10,996.81

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Solution

The fourth proportional to 18,953.21, 26,155.14 and 10,996.81 is: 15,175.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.21 : 26,155.14 = 10,996.81 : x
  2. Step 2: Convert to fraction form
    18,953.21/26,155.14 = 10,996.81/x
  3. Step 3: Cross multiply
    18,953.21x = 26,155.14 × 10,996.81
  4. Step 4: Simplify right side
    18,953.21x = 287,622,974.33
  5. Step 5: Solve for x
    x = 287,622,974.33/18,953.21
  6. Step 6: Final answer
    x = 15,175.42

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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.