Home / 18,914.04-28,352.52-7,828.56

Finding the Fourth Proportional to 18,914.04, 28,352.52 and 7,828.56

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Solution

The fourth proportional to 18,914.04, 28,352.52 and 7,828.56 is: 11,735.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914.04 : 28,352.52 = 7,828.56 : x
  2. Step 2: Convert to fraction form
    18,914.04/28,352.52 = 7,828.56/x
  3. Step 3: Cross multiply
    18,914.04x = 28,352.52 × 7,828.56
  4. Step 4: Simplify right side
    18,914.04x = 221,959,403.97
  5. Step 5: Solve for x
    x = 221,959,403.97/18,914.04
  6. Step 6: Final answer
    x = 11,735.17

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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.