Home / 13,828.10-19,083.28-7,859.58

Finding the Fourth Proportional to 13,828.10, 19,083.28 and 7,859.58

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Solution

The fourth proportional to 13,828.10, 19,083.28 and 7,859.58 is: 10,846.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.10 : 19,083.28 = 7,859.58 : x
  2. Step 2: Convert to fraction form
    13,828.10/19,083.28 = 7,859.58/x
  3. Step 3: Cross multiply
    13,828.10x = 19,083.28 × 7,859.58
  4. Step 4: Simplify right side
    13,828.10x = 149,986,565.82
  5. Step 5: Solve for x
    x = 149,986,565.82/13,828.10
  6. Step 6: Final answer
    x = 10,846.51

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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.