Home / 18,664.80-27,998.28-7,571.04

Finding the Fourth Proportional to 18,664.80, 27,998.28 and 7,571.04

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Solution

The fourth proportional to 18,664.80, 27,998.28 and 7,571.04 is: 11,357.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.80 : 27,998.28 = 7,571.04 : x
  2. Step 2: Convert to fraction form
    18,664.80/27,998.28 = 7,571.04/x
  3. Step 3: Cross multiply
    18,664.80x = 27,998.28 × 7,571.04
  4. Step 4: Simplify right side
    18,664.80x = 211,976,097.81
  5. Step 5: Solve for x
    x = 211,976,097.81/18,664.80
  6. Step 6: Final answer
    x = 11,357.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.