Home / 11,513.94-17,181.11-10,272.81

Finding the Fourth Proportional to 11,513.94, 17,181.11 and 10,272.81

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Solution

The fourth proportional to 11,513.94, 17,181.11 and 10,272.81 is: 15,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.94 : 17,181.11 = 10,272.81 : x
  2. Step 2: Convert to fraction form
    11,513.94/17,181.11 = 10,272.81/x
  3. Step 3: Cross multiply
    11,513.94x = 17,181.11 × 10,272.81
  4. Step 4: Simplify right side
    11,513.94x = 176,498,310.95
  5. Step 5: Solve for x
    x = 176,498,310.95/11,513.94
  6. Step 6: Final answer
    x = 15,329.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.