Home / 13,908.88-19,193.79-8,243.68

Finding the Fourth Proportional to 13,908.88, 19,193.79 and 8,243.68

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Solution

The fourth proportional to 13,908.88, 19,193.79 and 8,243.68 is: 11,376.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.88 : 19,193.79 = 8,243.68 : x
  2. Step 2: Convert to fraction form
    13,908.88/19,193.79 = 8,243.68/x
  3. Step 3: Cross multiply
    13,908.88x = 19,193.79 × 8,243.68
  4. Step 4: Simplify right side
    13,908.88x = 158,227,462.75
  5. Step 5: Solve for x
    x = 158,227,462.75/13,908.88
  6. Step 6: Final answer
    x = 11,376.00

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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.