Home / 13,986.83-20,983.71-6,589.55

Finding the Fourth Proportional to 13,986.83, 20,983.71 and 6,589.55

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Solution

The fourth proportional to 13,986.83, 20,983.71 and 6,589.55 is: 9,885.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.83 : 20,983.71 = 6,589.55 : x
  2. Step 2: Convert to fraction form
    13,986.83/20,983.71 = 6,589.55/x
  3. Step 3: Cross multiply
    13,986.83x = 20,983.71 × 6,589.55
  4. Step 4: Simplify right side
    13,986.83x = 138,273,246.33
  5. Step 5: Solve for x
    x = 138,273,246.33/13,986.83
  6. Step 6: Final answer
    x = 9,885.96

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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.