Home / 13,791.05-19,031.09-7,822.59

Finding the Fourth Proportional to 13,791.05, 19,031.09 and 7,822.59

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Solution

The fourth proportional to 13,791.05, 19,031.09 and 7,822.59 is: 10,794.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.05 : 19,031.09 = 7,822.59 : x
  2. Step 2: Convert to fraction form
    13,791.05/19,031.09 = 7,822.59/x
  3. Step 3: Cross multiply
    13,791.05x = 19,031.09 × 7,822.59
  4. Step 4: Simplify right side
    13,791.05x = 148,872,433.88
  5. Step 5: Solve for x
    x = 148,872,433.88/13,791.05
  6. Step 6: Final answer
    x = 10,794.86

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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.