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Finding the Fourth Proportional to 8,914.81, 12,301.97 and 4,880.87

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Solution

The fourth proportional to 8,914.81, 12,301.97 and 4,880.87 is: 6,735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.81 : 12,301.97 = 4,880.87 : x
  2. Step 2: Convert to fraction form
    8,914.81/12,301.97 = 4,880.87/x
  3. Step 3: Cross multiply
    8,914.81x = 12,301.97 × 4,880.87
  4. Step 4: Simplify right side
    8,914.81x = 60,044,254.80
  5. Step 5: Solve for x
    x = 60,044,254.80/8,914.81
  6. Step 6: Final answer
    x = 6,735.34

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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.