Home / 8,148.51-12,226.82-3,221.69

Finding the Fourth Proportional to 8,148.51, 12,226.82 and 3,221.69

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Solution

The fourth proportional to 8,148.51, 12,226.82 and 3,221.69 is: 4,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.51 : 12,226.82 = 3,221.69 : x
  2. Step 2: Convert to fraction form
    8,148.51/12,226.82 = 3,221.69/x
  3. Step 3: Cross multiply
    8,148.51x = 12,226.82 × 3,221.69
  4. Step 4: Simplify right side
    8,148.51x = 39,390,946.48
  5. Step 5: Solve for x
    x = 39,390,946.48/8,148.51
  6. Step 6: Final answer
    x = 4,834.13

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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.