Home / 19,911.45-27,473.39-11,523.09

Finding the Fourth Proportional to 19,911.45, 27,473.39 and 11,523.09

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Solution

The fourth proportional to 19,911.45, 27,473.39 and 11,523.09 is: 15,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.45 : 27,473.39 = 11,523.09 : x
  2. Step 2: Convert to fraction form
    19,911.45/27,473.39 = 11,523.09/x
  3. Step 3: Cross multiply
    19,911.45x = 27,473.39 × 11,523.09
  4. Step 4: Simplify right side
    19,911.45x = 316,578,499.01
  5. Step 5: Solve for x
    x = 316,578,499.01/19,911.45
  6. Step 6: Final answer
    x = 15,899.32

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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.