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Finding the Fourth Proportional to 8,599.71, 12,899.59 and 2,359.81

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Solution

The fourth proportional to 8,599.71, 12,899.59 and 2,359.81 is: 3,539.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.71 : 12,899.59 = 2,359.81 : x
  2. Step 2: Convert to fraction form
    8,599.71/12,899.59 = 2,359.81/x
  3. Step 3: Cross multiply
    8,599.71x = 12,899.59 × 2,359.81
  4. Step 4: Simplify right side
    8,599.71x = 30,440,505.18
  5. Step 5: Solve for x
    x = 30,440,505.18/8,599.71
  6. Step 6: Final answer
    x = 3,539.71

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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.