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Finding the Fourth Proportional to 8,465.10, 12,698.01 and 2,621.82

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Solution

The fourth proportional to 8,465.10, 12,698.01 and 2,621.82 is: 3,932.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.10 : 12,698.01 = 2,621.82 : x
  2. Step 2: Convert to fraction form
    8,465.10/12,698.01 = 2,621.82/x
  3. Step 3: Cross multiply
    8,465.10x = 12,698.01 × 2,621.82
  4. Step 4: Simplify right side
    8,465.10x = 33,291,896.58
  5. Step 5: Solve for x
    x = 33,291,896.58/8,465.10
  6. Step 6: Final answer
    x = 3,932.84

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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.