Home / 13,186.45-19,791.51-6,616.32

Finding the Fourth Proportional to 13,186.45, 19,791.51 and 6,616.32

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Solution

The fourth proportional to 13,186.45, 19,791.51 and 6,616.32 is: 9,930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.45 : 19,791.51 = 6,616.32 : x
  2. Step 2: Convert to fraction form
    13,186.45/19,791.51 = 6,616.32/x
  3. Step 3: Cross multiply
    13,186.45x = 19,791.51 × 6,616.32
  4. Step 4: Simplify right side
    13,186.45x = 130,946,963.44
  5. Step 5: Solve for x
    x = 130,946,963.44/13,186.45
  6. Step 6: Final answer
    x = 9,930.42

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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.