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Finding the Fourth Proportional to 8,698.68, 13,052.88 and 4,081.68

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Solution

The fourth proportional to 8,698.68, 13,052.88 and 4,081.68 is: 6,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.68 : 13,052.88 = 4,081.68 : x
  2. Step 2: Convert to fraction form
    8,698.68/13,052.88 = 4,081.68/x
  3. Step 3: Cross multiply
    8,698.68x = 13,052.88 × 4,081.68
  4. Step 4: Simplify right side
    8,698.68x = 53,277,679.24
  5. Step 5: Solve for x
    x = 53,277,679.24/8,698.68
  6. Step 6: Final answer
    x = 6,124.80

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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.