Home / 11,940.64-16,478.56-6,635.44

Finding the Fourth Proportional to 11,940.64, 16,478.56 and 6,635.44

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Solution

The fourth proportional to 11,940.64, 16,478.56 and 6,635.44 is: 9,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.64 : 16,478.56 = 6,635.44 : x
  2. Step 2: Convert to fraction form
    11,940.64/16,478.56 = 6,635.44/x
  3. Step 3: Cross multiply
    11,940.64x = 16,478.56 × 6,635.44
  4. Step 4: Simplify right side
    11,940.64x = 109,342,496.17
  5. Step 5: Solve for x
    x = 109,342,496.17/11,940.64
  6. Step 6: Final answer
    x = 9,157.17

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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.