Home / 19,913.51-27,480.96-11,416.38

Finding the Fourth Proportional to 19,913.51, 27,480.96 and 11,416.38

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Solution

The fourth proportional to 19,913.51, 27,480.96 and 11,416.38 is: 15,754.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.51 : 27,480.96 = 11,416.38 : x
  2. Step 2: Convert to fraction form
    19,913.51/27,480.96 = 11,416.38/x
  3. Step 3: Cross multiply
    19,913.51x = 27,480.96 × 11,416.38
  4. Step 4: Simplify right side
    19,913.51x = 313,733,082.12
  5. Step 5: Solve for x
    x = 313,733,082.12/19,913.51
  6. Step 6: Final answer
    x = 15,754.79

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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.