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Finding the Fourth Proportional to 8,216.58, 12,333.65 and 3,538.91

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Solution

The fourth proportional to 8,216.58, 12,333.65 and 3,538.91 is: 5,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.58 : 12,333.65 = 3,538.91 : x
  2. Step 2: Convert to fraction form
    8,216.58/12,333.65 = 3,538.91/x
  3. Step 3: Cross multiply
    8,216.58x = 12,333.65 × 3,538.91
  4. Step 4: Simplify right side
    8,216.58x = 43,647,597.96
  5. Step 5: Solve for x
    x = 43,647,597.96/8,216.58
  6. Step 6: Final answer
    x = 5,312.14

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1.5x scale

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.