Home / 8,455.33-12,687.55-3,528.35

Finding the Fourth Proportional to 8,455.33, 12,687.55 and 3,528.35

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Solution

The fourth proportional to 8,455.33, 12,687.55 and 3,528.35 is: 5,294.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.33 : 12,687.55 = 3,528.35 : x
  2. Step 2: Convert to fraction form
    8,455.33/12,687.55 = 3,528.35/x
  3. Step 3: Cross multiply
    8,455.33x = 12,687.55 × 3,528.35
  4. Step 4: Simplify right side
    8,455.33x = 44,766,139.94
  5. Step 5: Solve for x
    x = 44,766,139.94/8,455.33
  6. Step 6: Final answer
    x = 5,294.43

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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.