Home / 11,239.74-16,847.79-4,215.18

Finding the Fourth Proportional to 11,239.74, 16,847.79 and 4,215.18

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Solution

The fourth proportional to 11,239.74, 16,847.79 and 4,215.18 is: 6,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.74 : 16,847.79 = 4,215.18 : x
  2. Step 2: Convert to fraction form
    11,239.74/16,847.79 = 4,215.18/x
  3. Step 3: Cross multiply
    11,239.74x = 16,847.79 × 4,215.18
  4. Step 4: Simplify right side
    11,239.74x = 71,016,467.45
  5. Step 5: Solve for x
    x = 71,016,467.45/11,239.74
  6. Step 6: Final answer
    x = 6,318.34

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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.