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Finding the Fourth Proportional to 12,582.84, 18,874.26 and 4,262.88

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Solution

The fourth proportional to 12,582.84, 18,874.26 and 4,262.88 is: 6,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.84 : 18,874.26 = 4,262.88 : x
  2. Step 2: Convert to fraction form
    12,582.84/18,874.26 = 4,262.88/x
  3. Step 3: Cross multiply
    12,582.84x = 18,874.26 × 4,262.88
  4. Step 4: Simplify right side
    12,582.84x = 80,458,705.47
  5. Step 5: Solve for x
    x = 80,458,705.47/12,582.84
  6. Step 6: Final answer
    x = 6,394.32

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1.5x scale

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.