Home / 13,209.31-19,791.69-6,536.91

Finding the Fourth Proportional to 13,209.31, 19,791.69 and 6,536.91

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Solution

The fourth proportional to 13,209.31, 19,791.69 and 6,536.91 is: 9,794.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.31 : 19,791.69 = 6,536.91 : x
  2. Step 2: Convert to fraction form
    13,209.31/19,791.69 = 6,536.91/x
  3. Step 3: Cross multiply
    13,209.31x = 19,791.69 × 6,536.91
  4. Step 4: Simplify right side
    13,209.31x = 129,376,545.98
  5. Step 5: Solve for x
    x = 129,376,545.98/13,209.31
  6. Step 6: Final answer
    x = 9,794.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.