Home / 19,143.36-26,418.24-11,191.68

Finding the Fourth Proportional to 19,143.36, 26,418.24 and 11,191.68

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Solution

The fourth proportional to 19,143.36, 26,418.24 and 11,191.68 is: 15,444.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.36 : 26,418.24 = 11,191.68 : x
  2. Step 2: Convert to fraction form
    19,143.36/26,418.24 = 11,191.68/x
  3. Step 3: Cross multiply
    19,143.36x = 26,418.24 × 11,191.68
  4. Step 4: Simplify right side
    19,143.36x = 295,664,488.24
  5. Step 5: Solve for x
    x = 295,664,488.24/19,143.36
  6. Step 6: Final answer
    x = 15,444.75

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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.