Home / 13,905.71-19,191.71-7,936.01

Finding the Fourth Proportional to 13,905.71, 19,191.71 and 7,936.01

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Solution

The fourth proportional to 13,905.71, 19,191.71 and 7,936.01 is: 10,952.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.71 : 19,191.71 = 7,936.01 : x
  2. Step 2: Convert to fraction form
    13,905.71/19,191.71 = 7,936.01/x
  3. Step 3: Cross multiply
    13,905.71x = 19,191.71 × 7,936.01
  4. Step 4: Simplify right side
    13,905.71x = 152,305,562.80
  5. Step 5: Solve for x
    x = 152,305,562.80/13,905.71
  6. Step 6: Final answer
    x = 10,952.74

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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.