Home / 8,424.88-12,639.75-2,582.35

Finding the Fourth Proportional to 8,424.88, 12,639.75 and 2,582.35

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Solution

The fourth proportional to 8,424.88, 12,639.75 and 2,582.35 is: 3,874.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.88 : 12,639.75 = 2,582.35 : x
  2. Step 2: Convert to fraction form
    8,424.88/12,639.75 = 2,582.35/x
  3. Step 3: Cross multiply
    8,424.88x = 12,639.75 × 2,582.35
  4. Step 4: Simplify right side
    8,424.88x = 32,640,217.13
  5. Step 5: Solve for x
    x = 32,640,217.13/8,424.88
  6. Step 6: Final answer
    x = 3,874.27

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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.