Home / 11,940.51-16,477.79-6,635.22

Finding the Fourth Proportional to 11,940.51, 16,477.79 and 6,635.22

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Solution

The fourth proportional to 11,940.51, 16,477.79 and 6,635.22 is: 9,156.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.51 : 16,477.79 = 6,635.22 : x
  2. Step 2: Convert to fraction form
    11,940.51/16,477.79 = 6,635.22/x
  3. Step 3: Cross multiply
    11,940.51x = 16,477.79 × 6,635.22
  4. Step 4: Simplify right side
    11,940.51x = 109,333,728.59
  5. Step 5: Solve for x
    x = 109,333,728.59/11,940.51
  6. Step 6: Final answer
    x = 9,156.54

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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.