Home / 13,874.12-19,146.66-8,288.36

Finding the Fourth Proportional to 13,874.12, 19,146.66 and 8,288.36

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Solution

The fourth proportional to 13,874.12, 19,146.66 and 8,288.36 is: 11,438.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.12 : 19,146.66 = 8,288.36 : x
  2. Step 2: Convert to fraction form
    13,874.12/19,146.66 = 8,288.36/x
  3. Step 3: Cross multiply
    13,874.12x = 19,146.66 × 8,288.36
  4. Step 4: Simplify right side
    13,874.12x = 158,694,410.88
  5. Step 5: Solve for x
    x = 158,694,410.88/13,874.12
  6. Step 6: Final answer
    x = 11,438.16

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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.