Home / 12,583.90-18,878.56-3,819.48

Finding the Fourth Proportional to 12,583.90, 18,878.56 and 3,819.48

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Solution

The fourth proportional to 12,583.90, 18,878.56 and 3,819.48 is: 5,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,583.90 : 18,878.56 = 3,819.48 : x
  2. Step 2: Convert to fraction form
    12,583.90/18,878.56 = 3,819.48/x
  3. Step 3: Cross multiply
    12,583.90x = 18,878.56 × 3,819.48
  4. Step 4: Simplify right side
    12,583.90x = 72,106,282.35
  5. Step 5: Solve for x
    x = 72,106,282.35/12,583.90
  6. Step 6: Final answer
    x = 5,730.04

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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.