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Finding the Fourth Proportional to 8,588.81, 12,866.43 and 5,919.92

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Solution

The fourth proportional to 8,588.81, 12,866.43 and 5,919.92 is: 8,868.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.81 : 12,866.43 = 5,919.92 : x
  2. Step 2: Convert to fraction form
    8,588.81/12,866.43 = 5,919.92/x
  3. Step 3: Cross multiply
    8,588.81x = 12,866.43 × 5,919.92
  4. Step 4: Simplify right side
    8,588.81x = 76,168,171.95
  5. Step 5: Solve for x
    x = 76,168,171.95/8,588.81
  6. Step 6: Final answer
    x = 8,868.31

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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.