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Finding the Fourth Proportional to 8,647.29, 12,971.26 and 3,023.87

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Solution

The fourth proportional to 8,647.29, 12,971.26 and 3,023.87 is: 4,535.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.29 : 12,971.26 = 3,023.87 : x
  2. Step 2: Convert to fraction form
    8,647.29/12,971.26 = 3,023.87/x
  3. Step 3: Cross multiply
    8,647.29x = 12,971.26 × 3,023.87
  4. Step 4: Simplify right side
    8,647.29x = 39,223,331.56
  5. Step 5: Solve for x
    x = 39,223,331.56/8,647.29
  6. Step 6: Final answer
    x = 4,535.91

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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.