Home / 13,184.78-19,791.06-12,887.26

Finding the Fourth Proportional to 13,184.78, 19,791.06 and 12,887.26

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Solution

The fourth proportional to 13,184.78, 19,791.06 and 12,887.26 is: 19,344.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.78 : 19,791.06 = 12,887.26 : x
  2. Step 2: Convert to fraction form
    13,184.78/19,791.06 = 12,887.26/x
  3. Step 3: Cross multiply
    13,184.78x = 19,791.06 × 12,887.26
  4. Step 4: Simplify right side
    13,184.78x = 255,052,436.94
  5. Step 5: Solve for x
    x = 255,052,436.94/13,184.78
  6. Step 6: Final answer
    x = 19,344.47

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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.