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Finding the Fourth Proportional to 8,771.10, 13,156.62 and 2,927.70

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Solution

The fourth proportional to 8,771.10, 13,156.62 and 2,927.70 is: 4,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.10 : 13,156.62 = 2,927.70 : x
  2. Step 2: Convert to fraction form
    8,771.10/13,156.62 = 2,927.70/x
  3. Step 3: Cross multiply
    8,771.10x = 13,156.62 × 2,927.70
  4. Step 4: Simplify right side
    8,771.10x = 38,518,636.37
  5. Step 5: Solve for x
    x = 38,518,636.37/8,771.10
  6. Step 6: Final answer
    x = 4,391.54

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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.