Home / 13,932.29-19,226.56-7,964.09

Finding the Fourth Proportional to 13,932.29, 19,226.56 and 7,964.09

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Solution

The fourth proportional to 13,932.29, 19,226.56 and 7,964.09 is: 10,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.29 : 19,226.56 = 7,964.09 : x
  2. Step 2: Convert to fraction form
    13,932.29/19,226.56 = 7,964.09/x
  3. Step 3: Cross multiply
    13,932.29x = 19,226.56 × 7,964.09
  4. Step 4: Simplify right side
    13,932.29x = 153,121,918.28
  5. Step 5: Solve for x
    x = 153,121,918.28/13,932.29
  6. Step 6: Final answer
    x = 10,990.44

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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.