Home / 8,356.30-12,535.70-2,808.29

Finding the Fourth Proportional to 8,356.30, 12,535.70 and 2,808.29

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Solution

The fourth proportional to 8,356.30, 12,535.70 and 2,808.29 is: 4,212.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,356.30 : 12,535.70 = 2,808.29 : x
  2. Step 2: Convert to fraction form
    8,356.30/12,535.70 = 2,808.29/x
  3. Step 3: Cross multiply
    8,356.30x = 12,535.70 × 2,808.29
  4. Step 4: Simplify right side
    8,356.30x = 35,203,898.25
  5. Step 5: Solve for x
    x = 35,203,898.25/8,356.30
  6. Step 6: Final answer
    x = 4,212.86

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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.