Home / 18,140.93-27,169.57-13,111.44

Finding the Fourth Proportional to 18,140.93, 27,169.57 and 13,111.44

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Solution

The fourth proportional to 18,140.93, 27,169.57 and 13,111.44 is: 19,636.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.93 : 27,169.57 = 13,111.44 : x
  2. Step 2: Convert to fraction form
    18,140.93/27,169.57 = 13,111.44/x
  3. Step 3: Cross multiply
    18,140.93x = 27,169.57 × 13,111.44
  4. Step 4: Simplify right side
    18,140.93x = 356,232,186.88
  5. Step 5: Solve for x
    x = 356,232,186.88/18,140.93
  6. Step 6: Final answer
    x = 19,636.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.