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Finding the Fourth Proportional to 8,696.35, 13,041.08 and 3,148.05

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Solution

The fourth proportional to 8,696.35, 13,041.08 and 3,148.05 is: 4,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.35 : 13,041.08 = 3,148.05 : x
  2. Step 2: Convert to fraction form
    8,696.35/13,041.08 = 3,148.05/x
  3. Step 3: Cross multiply
    8,696.35x = 13,041.08 × 3,148.05
  4. Step 4: Simplify right side
    8,696.35x = 41,053,971.89
  5. Step 5: Solve for x
    x = 41,053,971.89/8,696.35
  6. Step 6: Final answer
    x = 4,720.83

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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.