Home / 19,119.78-26,387.35-11,570.27

Finding the Fourth Proportional to 19,119.78, 26,387.35 and 11,570.27

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Solution

The fourth proportional to 19,119.78, 26,387.35 and 11,570.27 is: 15,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.78 : 26,387.35 = 11,570.27 : x
  2. Step 2: Convert to fraction form
    19,119.78/26,387.35 = 11,570.27/x
  3. Step 3: Cross multiply
    19,119.78x = 26,387.35 × 11,570.27
  4. Step 4: Simplify right side
    19,119.78x = 305,308,603.22
  5. Step 5: Solve for x
    x = 305,308,603.22/19,119.78
  6. Step 6: Final answer
    x = 15,968.21

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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.