Home / 13,365.12-20,049.54-5,572.14

Finding the Fourth Proportional to 13,365.12, 20,049.54 and 5,572.14

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Solution

The fourth proportional to 13,365.12, 20,049.54 and 5,572.14 is: 8,358.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.12 : 20,049.54 = 5,572.14 : x
  2. Step 2: Convert to fraction form
    13,365.12/20,049.54 = 5,572.14/x
  3. Step 3: Cross multiply
    13,365.12x = 20,049.54 × 5,572.14
  4. Step 4: Simplify right side
    13,365.12x = 111,718,843.82
  5. Step 5: Solve for x
    x = 111,718,843.82/13,365.12
  6. Step 6: Final answer
    x = 8,358.99

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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.