Home / 8,255.55-11,391.60-4,719

Finding the Fourth Proportional to 8,255.55, 11,391.60 and 4,719

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Solution

The fourth proportional to 8,255.55, 11,391.60 and 4,719 is: 6,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.55 : 11,391.60 = 4,719 : x
  2. Step 2: Convert to fraction form
    8,255.55/11,391.60 = 4,719/x
  3. Step 3: Cross multiply
    8,255.55x = 11,391.60 × 4,719
  4. Step 4: Simplify right side
    8,255.55x = 53,756,960.40
  5. Step 5: Solve for x
    x = 53,756,960.40/8,255.55
  6. Step 6: Final answer
    x = 6,511.61

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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.