Home / 13,868.43-19,141.77-7,901.57

Finding the Fourth Proportional to 13,868.43, 19,141.77 and 7,901.57

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Solution

The fourth proportional to 13,868.43, 19,141.77 and 7,901.57 is: 10,906.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.43 : 19,141.77 = 7,901.57 : x
  2. Step 2: Convert to fraction form
    13,868.43/19,141.77 = 7,901.57/x
  3. Step 3: Cross multiply
    13,868.43x = 19,141.77 × 7,901.57
  4. Step 4: Simplify right side
    13,868.43x = 151,249,939.87
  5. Step 5: Solve for x
    x = 151,249,939.87/13,868.43
  6. Step 6: Final answer
    x = 10,906.06

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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.