Home / 8,431.47-12,647.82-3,237.35

Finding the Fourth Proportional to 8,431.47, 12,647.82 and 3,237.35

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Solution

The fourth proportional to 8,431.47, 12,647.82 and 3,237.35 is: 4,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.47 : 12,647.82 = 3,237.35 : x
  2. Step 2: Convert to fraction form
    8,431.47/12,647.82 = 3,237.35/x
  3. Step 3: Cross multiply
    8,431.47x = 12,647.82 × 3,237.35
  4. Step 4: Simplify right side
    8,431.47x = 40,945,388.46
  5. Step 5: Solve for x
    x = 40,945,388.46/8,431.47
  6. Step 6: Final answer
    x = 4,856.26

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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.