Home / 12,589.22-18,885.66-3,823.00

Finding the Fourth Proportional to 12,589.22, 18,885.66 and 3,823.00

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Solution

The fourth proportional to 12,589.22, 18,885.66 and 3,823.00 is: 5,735.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.22 : 18,885.66 = 3,823.00 : x
  2. Step 2: Convert to fraction form
    12,589.22/18,885.66 = 3,823.00/x
  3. Step 3: Cross multiply
    12,589.22x = 18,885.66 × 3,823.00
  4. Step 4: Simplify right side
    12,589.22x = 72,199,816.63
  5. Step 5: Solve for x
    x = 72,199,816.63/12,589.22
  6. Step 6: Final answer
    x = 5,735.05

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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.