Home / 8,362.10-12,538.70-2,813.60

Finding the Fourth Proportional to 8,362.10, 12,538.70 and 2,813.60

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Solution

The fourth proportional to 8,362.10, 12,538.70 and 2,813.60 is: 4,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,362.10 : 12,538.70 = 2,813.60 : x
  2. Step 2: Convert to fraction form
    8,362.10/12,538.70 = 2,813.60/x
  3. Step 3: Cross multiply
    8,362.10x = 12,538.70 × 2,813.60
  4. Step 4: Simplify right side
    8,362.10x = 35,278,872.25
  5. Step 5: Solve for x
    x = 35,278,872.25/8,362.10
  6. Step 6: Final answer
    x = 4,218.90

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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.