Home / 14,220.78-19,623.33-7,933.56

Finding the Fourth Proportional to 14,220.78, 19,623.33 and 7,933.56

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Solution

The fourth proportional to 14,220.78, 19,623.33 and 7,933.56 is: 10,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.78 : 19,623.33 = 7,933.56 : x
  2. Step 2: Convert to fraction form
    14,220.78/19,623.33 = 7,933.56/x
  3. Step 3: Cross multiply
    14,220.78x = 19,623.33 × 7,933.56
  4. Step 4: Simplify right side
    14,220.78x = 155,682,865.95
  5. Step 5: Solve for x
    x = 155,682,865.95/14,220.78
  6. Step 6: Final answer
    x = 10,947.56

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Double scale
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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.