Home / 8,445.15-12,651.32-4,065.68

Finding the Fourth Proportional to 8,445.15, 12,651.32 and 4,065.68

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Solution

The fourth proportional to 8,445.15, 12,651.32 and 4,065.68 is: 6,090.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.15 : 12,651.32 = 4,065.68 : x
  2. Step 2: Convert to fraction form
    8,445.15/12,651.32 = 4,065.68/x
  3. Step 3: Cross multiply
    8,445.15x = 12,651.32 × 4,065.68
  4. Step 4: Simplify right side
    8,445.15x = 51,436,218.70
  5. Step 5: Solve for x
    x = 51,436,218.70/8,445.15
  6. Step 6: Final answer
    x = 6,090.62

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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.