Home / 11,467.12-15,821.56-6,989.44

Finding the Fourth Proportional to 11,467.12, 15,821.56 and 6,989.44

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Solution

The fourth proportional to 11,467.12, 15,821.56 and 6,989.44 is: 9,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,467.12 : 15,821.56 = 6,989.44 : x
  2. Step 2: Convert to fraction form
    11,467.12/15,821.56 = 6,989.44/x
  3. Step 3: Cross multiply
    11,467.12x = 15,821.56 × 6,989.44
  4. Step 4: Simplify right side
    11,467.12x = 110,583,844.33
  5. Step 5: Solve for x
    x = 110,583,844.33/11,467.12
  6. Step 6: Final answer
    x = 9,643.56

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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.