Home / 13,841.12-20,722.80-12,441.44

Finding the Fourth Proportional to 13,841.12, 20,722.80 and 12,441.44

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Solution

The fourth proportional to 13,841.12, 20,722.80 and 12,441.44 is: 18,627.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.12 : 20,722.80 = 12,441.44 : x
  2. Step 2: Convert to fraction form
    13,841.12/20,722.80 = 12,441.44/x
  3. Step 3: Cross multiply
    13,841.12x = 20,722.80 × 12,441.44
  4. Step 4: Simplify right side
    13,841.12x = 257,821,472.83
  5. Step 5: Solve for x
    x = 257,821,472.83/13,841.12
  6. Step 6: Final answer
    x = 18,627.21

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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.