Home / 8,403.90-12,608.68-3,475.86

Finding the Fourth Proportional to 8,403.90, 12,608.68 and 3,475.86

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Solution

The fourth proportional to 8,403.90, 12,608.68 and 3,475.86 is: 5,214.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.90 : 12,608.68 = 3,475.86 : x
  2. Step 2: Convert to fraction form
    8,403.90/12,608.68 = 3,475.86/x
  3. Step 3: Cross multiply
    8,403.90x = 12,608.68 × 3,475.86
  4. Step 4: Simplify right side
    8,403.90x = 43,826,006.46
  5. Step 5: Solve for x
    x = 43,826,006.46/8,403.90
  6. Step 6: Final answer
    x = 5,214.96

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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.