Home / 14,185.41-21,257.12-12,628.32

Finding the Fourth Proportional to 14,185.41, 21,257.12 and 12,628.32

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Solution

The fourth proportional to 14,185.41, 21,257.12 and 12,628.32 is: 18,923.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,185.41 : 21,257.12 = 12,628.32 : x
  2. Step 2: Convert to fraction form
    14,185.41/21,257.12 = 12,628.32/x
  3. Step 3: Cross multiply
    14,185.41x = 21,257.12 × 12,628.32
  4. Step 4: Simplify right side
    14,185.41x = 268,441,650.50
  5. Step 5: Solve for x
    x = 268,441,650.50/14,185.41
  6. Step 6: Final answer
    x = 18,923.79

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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.