Home / 8,555.27-12,838.05-3,012.75

Finding the Fourth Proportional to 8,555.27, 12,838.05 and 3,012.75

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Solution

The fourth proportional to 8,555.27, 12,838.05 and 3,012.75 is: 4,520.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.27 : 12,838.05 = 3,012.75 : x
  2. Step 2: Convert to fraction form
    8,555.27/12,838.05 = 3,012.75/x
  3. Step 3: Cross multiply
    8,555.27x = 12,838.05 × 3,012.75
  4. Step 4: Simplify right side
    8,555.27x = 38,677,835.14
  5. Step 5: Solve for x
    x = 38,677,835.14/8,555.27
  6. Step 6: Final answer
    x = 4,520.94

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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.