Home / 8,855.31-13,280.45-3,011.79

Finding the Fourth Proportional to 8,855.31, 13,280.45 and 3,011.79

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Solution

The fourth proportional to 8,855.31, 13,280.45 and 3,011.79 is: 4,516.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.31 : 13,280.45 = 3,011.79 : x
  2. Step 2: Convert to fraction form
    8,855.31/13,280.45 = 3,011.79/x
  3. Step 3: Cross multiply
    8,855.31x = 13,280.45 × 3,011.79
  4. Step 4: Simplify right side
    8,855.31x = 39,997,911.45
  5. Step 5: Solve for x
    x = 39,997,911.45/8,855.31
  6. Step 6: Final answer
    x = 4,516.83

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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.