Home / 19,907.94-27,472.20-11,409.36

Finding the Fourth Proportional to 19,907.94, 27,472.20 and 11,409.36

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Solution

The fourth proportional to 19,907.94, 27,472.20 and 11,409.36 is: 15,744.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.94 : 27,472.20 = 11,409.36 : x
  2. Step 2: Convert to fraction form
    19,907.94/27,472.20 = 11,409.36/x
  3. Step 3: Cross multiply
    19,907.94x = 27,472.20 × 11,409.36
  4. Step 4: Simplify right side
    19,907.94x = 313,440,219.79
  5. Step 5: Solve for x
    x = 313,440,219.79/19,907.94
  6. Step 6: Final answer
    x = 15,744.48

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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.