Home / 8,319.54-12,477.36-3,874.43

Finding the Fourth Proportional to 8,319.54, 12,477.36 and 3,874.43

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Solution

The fourth proportional to 8,319.54, 12,477.36 and 3,874.43 is: 5,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.54 : 12,477.36 = 3,874.43 : x
  2. Step 2: Convert to fraction form
    8,319.54/12,477.36 = 3,874.43/x
  3. Step 3: Cross multiply
    8,319.54x = 12,477.36 × 3,874.43
  4. Step 4: Simplify right side
    8,319.54x = 48,342,657.90
  5. Step 5: Solve for x
    x = 48,342,657.90/8,319.54
  6. Step 6: Final answer
    x = 5,810.74

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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.