Home / 8,445.31-12,669.72-3,180.26

Finding the Fourth Proportional to 8,445.31, 12,669.72 and 3,180.26

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Solution

The fourth proportional to 8,445.31, 12,669.72 and 3,180.26 is: 4,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.31 : 12,669.72 = 3,180.26 : x
  2. Step 2: Convert to fraction form
    8,445.31/12,669.72 = 3,180.26/x
  3. Step 3: Cross multiply
    8,445.31x = 12,669.72 × 3,180.26
  4. Step 4: Simplify right side
    8,445.31x = 40,293,023.48
  5. Step 5: Solve for x
    x = 40,293,023.48/8,445.31
  6. Step 6: Final answer
    x = 4,771.05

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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.