Home / 13,886.04-19,163.79-7,917.85

Finding the Fourth Proportional to 13,886.04, 19,163.79 and 7,917.85

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Solution

The fourth proportional to 13,886.04, 19,163.79 and 7,917.85 is: 10,927.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.04 : 19,163.79 = 7,917.85 : x
  2. Step 2: Convert to fraction form
    13,886.04/19,163.79 = 7,917.85/x
  3. Step 3: Cross multiply
    13,886.04x = 19,163.79 × 7,917.85
  4. Step 4: Simplify right side
    13,886.04x = 151,735,966.74
  5. Step 5: Solve for x
    x = 151,735,966.74/13,886.04
  6. Step 6: Final answer
    x = 10,927.23

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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.