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Finding the Fourth Proportional to 8,599.98, 11,866.16 and 5,620.20

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Solution

The fourth proportional to 8,599.98, 11,866.16 and 5,620.20 is: 7,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.98 : 11,866.16 = 5,620.20 : x
  2. Step 2: Convert to fraction form
    8,599.98/11,866.16 = 5,620.20/x
  3. Step 3: Cross multiply
    8,599.98x = 11,866.16 × 5,620.20
  4. Step 4: Simplify right side
    8,599.98x = 66,690,192.43
  5. Step 5: Solve for x
    x = 66,690,192.43/8,599.98
  6. Step 6: Final answer
    x = 7,754.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.