Home / 13,828.24-19,082.79-7,859.51

Finding the Fourth Proportional to 13,828.24, 19,082.79 and 7,859.51

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Solution

The fourth proportional to 13,828.24, 19,082.79 and 7,859.51 is: 10,846.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.24 : 19,082.79 = 7,859.51 : x
  2. Step 2: Convert to fraction form
    13,828.24/19,082.79 = 7,859.51/x
  3. Step 3: Cross multiply
    13,828.24x = 19,082.79 × 7,859.51
  4. Step 4: Simplify right side
    13,828.24x = 149,981,422.07
  5. Step 5: Solve for x
    x = 149,981,422.07/13,828.24
  6. Step 6: Final answer
    x = 10,846.03

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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.