Home / 19,687.86-27,169.11-10,735.38

Finding the Fourth Proportional to 19,687.86, 27,169.11 and 10,735.38

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Solution

The fourth proportional to 19,687.86, 27,169.11 and 10,735.38 is: 14,814.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.86 : 27,169.11 = 10,735.38 : x
  2. Step 2: Convert to fraction form
    19,687.86/27,169.11 = 10,735.38/x
  3. Step 3: Cross multiply
    19,687.86x = 27,169.11 × 10,735.38
  4. Step 4: Simplify right side
    19,687.86x = 291,670,720.11
  5. Step 5: Solve for x
    x = 291,670,720.11/19,687.86
  6. Step 6: Final answer
    x = 14,814.75

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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.