Home / 11,078.30-15,256.95-10,836.38

Finding the Fourth Proportional to 11,078.30, 15,256.95 and 10,836.38

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Solution

The fourth proportional to 11,078.30, 15,256.95 and 10,836.38 is: 14,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.30 : 15,256.95 = 10,836.38 : x
  2. Step 2: Convert to fraction form
    11,078.30/15,256.95 = 10,836.38/x
  3. Step 3: Cross multiply
    11,078.30x = 15,256.95 × 10,836.38
  4. Step 4: Simplify right side
    11,078.30x = 165,330,107.84
  5. Step 5: Solve for x
    x = 165,330,107.84/11,078.30
  6. Step 6: Final answer
    x = 14,923.78

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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.