Home / 19,078.20-26,328.60-11,119.14

Finding the Fourth Proportional to 19,078.20, 26,328.60 and 11,119.14

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Solution

The fourth proportional to 19,078.20, 26,328.60 and 11,119.14 is: 15,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.20 : 26,328.60 = 11,119.14 : x
  2. Step 2: Convert to fraction form
    19,078.20/26,328.60 = 11,119.14/x
  3. Step 3: Cross multiply
    19,078.20x = 26,328.60 × 11,119.14
  4. Step 4: Simplify right side
    19,078.20x = 292,751,389.40
  5. Step 5: Solve for x
    x = 292,751,389.40/19,078.20
  6. Step 6: Final answer
    x = 15,344.81

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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.