Home / 13,888.36-19,169.96-7,923.28

Finding the Fourth Proportional to 13,888.36, 19,169.96 and 7,923.28

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Solution

The fourth proportional to 13,888.36, 19,169.96 and 7,923.28 is: 10,936.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.36 : 19,169.96 = 7,923.28 : x
  2. Step 2: Convert to fraction form
    13,888.36/19,169.96 = 7,923.28/x
  3. Step 3: Cross multiply
    13,888.36x = 19,169.96 × 7,923.28
  4. Step 4: Simplify right side
    13,888.36x = 151,888,960.67
  5. Step 5: Solve for x
    x = 151,888,960.67/13,888.36
  6. Step 6: Final answer
    x = 10,936.42

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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.