Home / 8,488.19-12,725.05-3,220.26

Finding the Fourth Proportional to 8,488.19, 12,725.05 and 3,220.26

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Solution

The fourth proportional to 8,488.19, 12,725.05 and 3,220.26 is: 4,827.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.19 : 12,725.05 = 3,220.26 : x
  2. Step 2: Convert to fraction form
    8,488.19/12,725.05 = 3,220.26/x
  3. Step 3: Cross multiply
    8,488.19x = 12,725.05 × 3,220.26
  4. Step 4: Simplify right side
    8,488.19x = 40,977,919.78
  5. Step 5: Solve for x
    x = 40,977,919.78/8,488.19
  6. Step 6: Final answer
    x = 4,827.64

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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.