Home / 8,914.20-12,301.38-4,881

Finding the Fourth Proportional to 8,914.20, 12,301.38 and 4,881

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Solution

The fourth proportional to 8,914.20, 12,301.38 and 4,881 is: 6,735.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.20 : 12,301.38 = 4,881 : x
  2. Step 2: Convert to fraction form
    8,914.20/12,301.38 = 4,881/x
  3. Step 3: Cross multiply
    8,914.20x = 12,301.38 × 4,881
  4. Step 4: Simplify right side
    8,914.20x = 60,043,035.78
  5. Step 5: Solve for x
    x = 60,043,035.78/8,914.20
  6. Step 6: Final answer
    x = 6,735.66

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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.