Home / 19,105.36-26,365.32-11,147.92

Finding the Fourth Proportional to 19,105.36, 26,365.32 and 11,147.92

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Solution

The fourth proportional to 19,105.36, 26,365.32 and 11,147.92 is: 15,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.36 : 26,365.32 = 11,147.92 : x
  2. Step 2: Convert to fraction form
    19,105.36/26,365.32 = 11,147.92/x
  3. Step 3: Cross multiply
    19,105.36x = 26,365.32 × 11,147.92
  4. Step 4: Simplify right side
    19,105.36x = 293,918,478.13
  5. Step 5: Solve for x
    x = 293,918,478.13/19,105.36
  6. Step 6: Final answer
    x = 15,384.08

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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.