Home / 11,306.86-16,960.10-2,758.40

Finding the Fourth Proportional to 11,306.86, 16,960.10 and 2,758.40

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Solution

The fourth proportional to 11,306.86, 16,960.10 and 2,758.40 is: 4,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,306.86 : 16,960.10 = 2,758.40 : x
  2. Step 2: Convert to fraction form
    11,306.86/16,960.10 = 2,758.40/x
  3. Step 3: Cross multiply
    11,306.86x = 16,960.10 × 2,758.40
  4. Step 4: Simplify right side
    11,306.86x = 46,782,739.84
  5. Step 5: Solve for x
    x = 46,782,739.84/11,306.86
  6. Step 6: Final answer
    x = 4,137.55

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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.