Home / 13,816.22-19,065.71-7,847.11

Finding the Fourth Proportional to 13,816.22, 19,065.71 and 7,847.11

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Solution

The fourth proportional to 13,816.22, 19,065.71 and 7,847.11 is: 10,828.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.22 : 19,065.71 = 7,847.11 : x
  2. Step 2: Convert to fraction form
    13,816.22/19,065.71 = 7,847.11/x
  3. Step 3: Cross multiply
    13,816.22x = 19,065.71 × 7,847.11
  4. Step 4: Simplify right side
    13,816.22x = 149,610,589.03
  5. Step 5: Solve for x
    x = 149,610,589.03/13,816.22
  6. Step 6: Final answer
    x = 10,828.62

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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.