Home / 12,646.85-18,968.60-3,881.03

Finding the Fourth Proportional to 12,646.85, 18,968.60 and 3,881.03

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Solution

The fourth proportional to 12,646.85, 18,968.60 and 3,881.03 is: 5,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.85 : 18,968.60 = 3,881.03 : x
  2. Step 2: Convert to fraction form
    12,646.85/18,968.60 = 3,881.03/x
  3. Step 3: Cross multiply
    12,646.85x = 18,968.60 × 3,881.03
  4. Step 4: Simplify right side
    12,646.85x = 73,617,620.52
  5. Step 5: Solve for x
    x = 73,617,620.52/12,646.85
  6. Step 6: Final answer
    x = 5,821.03

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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.