Home / 13,380.26-18,474.41-8,913.31

Finding the Fourth Proportional to 13,380.26, 18,474.41 and 8,913.31

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Solution

The fourth proportional to 13,380.26, 18,474.41 and 8,913.31 is: 12,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.26 : 18,474.41 = 8,913.31 : x
  2. Step 2: Convert to fraction form
    13,380.26/18,474.41 = 8,913.31/x
  3. Step 3: Cross multiply
    13,380.26x = 18,474.41 × 8,913.31
  4. Step 4: Simplify right side
    13,380.26x = 164,668,119.49
  5. Step 5: Solve for x
    x = 164,668,119.49/13,380.26
  6. Step 6: Final answer
    x = 12,306.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.