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Finding the Fourth Proportional to 8,533.88, 12,806.62 and 5,236.91

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Solution

The fourth proportional to 8,533.88, 12,806.62 and 5,236.91 is: 7,858.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,533.88 : 12,806.62 = 5,236.91 : x
  2. Step 2: Convert to fraction form
    8,533.88/12,806.62 = 5,236.91/x
  3. Step 3: Cross multiply
    8,533.88x = 12,806.62 × 5,236.91
  4. Step 4: Simplify right side
    8,533.88x = 67,067,116.34
  5. Step 5: Solve for x
    x = 67,067,116.34/8,533.88
  6. Step 6: Final answer
    x = 7,858.92

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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.