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Finding the Fourth Proportional to 8,480.81, 11,704.30 and 4,895.88

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Solution

The fourth proportional to 8,480.81, 11,704.30 and 4,895.88 is: 6,756.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.81 : 11,704.30 = 4,895.88 : x
  2. Step 2: Convert to fraction form
    8,480.81/11,704.30 = 4,895.88/x
  3. Step 3: Cross multiply
    8,480.81x = 11,704.30 × 4,895.88
  4. Step 4: Simplify right side
    8,480.81x = 57,302,860.52
  5. Step 5: Solve for x
    x = 57,302,860.52/8,480.81
  6. Step 6: Final answer
    x = 6,756.77

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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.