Home / 8,257.56-12,386.70-3,259.92

Finding the Fourth Proportional to 8,257.56, 12,386.70 and 3,259.92

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Solution

The fourth proportional to 8,257.56, 12,386.70 and 3,259.92 is: 4,890.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.56 : 12,386.70 = 3,259.92 : x
  2. Step 2: Convert to fraction form
    8,257.56/12,386.70 = 3,259.92/x
  3. Step 3: Cross multiply
    8,257.56x = 12,386.70 × 3,259.92
  4. Step 4: Simplify right side
    8,257.56x = 40,379,651.06
  5. Step 5: Solve for x
    x = 40,379,651.06/8,257.56
  6. Step 6: Final answer
    x = 4,890.02

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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.