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Finding the Fourth Proportional to 8,584.60, 12,879.06 and 3,038.08

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Solution

The fourth proportional to 8,584.60, 12,879.06 and 3,038.08 is: 4,557.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,584.60 : 12,879.06 = 3,038.08 : x
  2. Step 2: Convert to fraction form
    8,584.60/12,879.06 = 3,038.08/x
  3. Step 3: Cross multiply
    8,584.60x = 12,879.06 × 3,038.08
  4. Step 4: Simplify right side
    8,584.60x = 39,127,614.60
  5. Step 5: Solve for x
    x = 39,127,614.60/8,584.60
  6. Step 6: Final answer
    x = 4,557.88

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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.