Home / 19,409.14-26,781.06-10,911.43

Finding the Fourth Proportional to 19,409.14, 26,781.06 and 10,911.43

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Solution

The fourth proportional to 19,409.14, 26,781.06 and 10,911.43 is: 15,055.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,409.14 : 26,781.06 = 10,911.43 : x
  2. Step 2: Convert to fraction form
    19,409.14/26,781.06 = 10,911.43/x
  3. Step 3: Cross multiply
    19,409.14x = 26,781.06 × 10,911.43
  4. Step 4: Simplify right side
    19,409.14x = 292,219,661.52
  5. Step 5: Solve for x
    x = 292,219,661.52/19,409.14
  6. Step 6: Final answer
    x = 15,055.78

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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.