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Finding the Fourth Proportional to 8,599.40, 12,892.06 and 3,979.24

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Solution

The fourth proportional to 8,599.40, 12,892.06 and 3,979.24 is: 5,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.40 : 12,892.06 = 3,979.24 : x
  2. Step 2: Convert to fraction form
    8,599.40/12,892.06 = 3,979.24/x
  3. Step 3: Cross multiply
    8,599.40x = 12,892.06 × 3,979.24
  4. Step 4: Simplify right side
    8,599.40x = 51,300,600.83
  5. Step 5: Solve for x
    x = 51,300,600.83/8,599.40
  6. Step 6: Final answer
    x = 5,965.60

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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.