Home / 11,418.54-17,128.95-3,098.69

Finding the Fourth Proportional to 11,418.54, 17,128.95 and 3,098.69

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Solution

The fourth proportional to 11,418.54, 17,128.95 and 3,098.69 is: 4,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.54 : 17,128.95 = 3,098.69 : x
  2. Step 2: Convert to fraction form
    11,418.54/17,128.95 = 3,098.69/x
  3. Step 3: Cross multiply
    11,418.54x = 17,128.95 × 3,098.69
  4. Step 4: Simplify right side
    11,418.54x = 53,077,306.08
  5. Step 5: Solve for x
    x = 53,077,306.08/11,418.54
  6. Step 6: Final answer
    x = 4,648.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.