Home / 8,771.48-13,156.91-2,197.72

Finding the Fourth Proportional to 8,771.48, 13,156.91 and 2,197.72

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Solution

The fourth proportional to 8,771.48, 13,156.91 and 2,197.72 is: 3,296.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.48 : 13,156.91 = 2,197.72 : x
  2. Step 2: Convert to fraction form
    8,771.48/13,156.91 = 2,197.72/x
  3. Step 3: Cross multiply
    8,771.48x = 13,156.91 × 2,197.72
  4. Step 4: Simplify right side
    8,771.48x = 28,915,204.25
  5. Step 5: Solve for x
    x = 28,915,204.25/8,771.48
  6. Step 6: Final answer
    x = 3,296.50

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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.