Home / 8,645.06-12,972.84-3,450.50

Finding the Fourth Proportional to 8,645.06, 12,972.84 and 3,450.50

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Solution

The fourth proportional to 8,645.06, 12,972.84 and 3,450.50 is: 5,177.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.06 : 12,972.84 = 3,450.50 : x
  2. Step 2: Convert to fraction form
    8,645.06/12,972.84 = 3,450.50/x
  3. Step 3: Cross multiply
    8,645.06x = 12,972.84 × 3,450.50
  4. Step 4: Simplify right side
    8,645.06x = 44,762,784.42
  5. Step 5: Solve for x
    x = 44,762,784.42/8,645.06
  6. Step 6: Final answer
    x = 5,177.85

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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.