Home / 19,655.91-27,131.99-11,697.96

Finding the Fourth Proportional to 19,655.91, 27,131.99 and 11,697.96

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Solution

The fourth proportional to 19,655.91, 27,131.99 and 11,697.96 is: 16,147.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.91 : 27,131.99 = 11,697.96 : x
  2. Step 2: Convert to fraction form
    19,655.91/27,131.99 = 11,697.96/x
  3. Step 3: Cross multiply
    19,655.91x = 27,131.99 × 11,697.96
  4. Step 4: Simplify right side
    19,655.91x = 317,388,933.74
  5. Step 5: Solve for x
    x = 317,388,933.74/19,655.91
  6. Step 6: Final answer
    x = 16,147.25

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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.