Home / 11,240.69-15,513.57-6,766.85

Finding the Fourth Proportional to 11,240.69, 15,513.57 and 6,766.85

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Solution

The fourth proportional to 11,240.69, 15,513.57 and 6,766.85 is: 9,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.69 : 15,513.57 = 6,766.85 : x
  2. Step 2: Convert to fraction form
    11,240.69/15,513.57 = 6,766.85/x
  3. Step 3: Cross multiply
    11,240.69x = 15,513.57 × 6,766.85
  4. Step 4: Simplify right side
    11,240.69x = 104,977,923.59
  5. Step 5: Solve for x
    x = 104,977,923.59/11,240.69
  6. Step 6: Final answer
    x = 9,339.10

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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.