Home / 11,439.82-15,788.28-6,905.44

Finding the Fourth Proportional to 11,439.82, 15,788.28 and 6,905.44

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Solution

The fourth proportional to 11,439.82, 15,788.28 and 6,905.44 is: 9,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.82 : 15,788.28 = 6,905.44 : x
  2. Step 2: Convert to fraction form
    11,439.82/15,788.28 = 6,905.44/x
  3. Step 3: Cross multiply
    11,439.82x = 15,788.28 × 6,905.44
  4. Step 4: Simplify right side
    11,439.82x = 109,025,020.24
  5. Step 5: Solve for x
    x = 109,025,020.24/11,439.82
  6. Step 6: Final answer
    x = 9,530.31

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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.