Home / 13,643.58-20,454.94-12,252.74

Finding the Fourth Proportional to 13,643.58, 20,454.94 and 12,252.74

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Solution

The fourth proportional to 13,643.58, 20,454.94 and 12,252.74 is: 18,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.58 : 20,454.94 = 12,252.74 : x
  2. Step 2: Convert to fraction form
    13,643.58/20,454.94 = 12,252.74/x
  3. Step 3: Cross multiply
    13,643.58x = 20,454.94 × 12,252.74
  4. Step 4: Simplify right side
    13,643.58x = 250,629,061.54
  5. Step 5: Solve for x
    x = 250,629,061.54/13,643.58
  6. Step 6: Final answer
    x = 18,369.74

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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.