Home / 13,943.21-19,234.87-9,231.44

Finding the Fourth Proportional to 13,943.21, 19,234.87 and 9,231.44

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Solution

The fourth proportional to 13,943.21, 19,234.87 and 9,231.44 is: 12,734.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.21 : 19,234.87 = 9,231.44 : x
  2. Step 2: Convert to fraction form
    13,943.21/19,234.87 = 9,231.44/x
  3. Step 3: Cross multiply
    13,943.21x = 19,234.87 × 9,231.44
  4. Step 4: Simplify right side
    13,943.21x = 177,565,429.06
  5. Step 5: Solve for x
    x = 177,565,429.06/13,943.21
  6. Step 6: Final answer
    x = 12,734.91

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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.