Home / 19,105.53-26,362.05-11,145.77

Finding the Fourth Proportional to 19,105.53, 26,362.05 and 11,145.77

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Solution

The fourth proportional to 19,105.53, 26,362.05 and 11,145.77 is: 15,379.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.53 : 26,362.05 = 11,145.77 : x
  2. Step 2: Convert to fraction form
    19,105.53/26,362.05 = 11,145.77/x
  3. Step 3: Cross multiply
    19,105.53x = 26,362.05 × 11,145.77
  4. Step 4: Simplify right side
    19,105.53x = 293,825,346.03
  5. Step 5: Solve for x
    x = 293,825,346.03/19,105.53
  6. Step 6: Final answer
    x = 15,379.07

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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.