Home / 7,778.13-11,648.61-4,262.85

Finding the Fourth Proportional to 7,778.13, 11,648.61 and 4,262.85

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Solution

The fourth proportional to 7,778.13, 11,648.61 and 4,262.85 is: 6,384.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.13 : 11,648.61 = 4,262.85 : x
  2. Step 2: Convert to fraction form
    7,778.13/11,648.61 = 4,262.85/x
  3. Step 3: Cross multiply
    7,778.13x = 11,648.61 × 4,262.85
  4. Step 4: Simplify right side
    7,778.13x = 49,656,277.14
  5. Step 5: Solve for x
    x = 49,656,277.14/7,778.13
  6. Step 6: Final answer
    x = 6,384.09

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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.