Home / 8,791.44-12,127.64-5,204.36

Finding the Fourth Proportional to 8,791.44, 12,127.64 and 5,204.36

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Solution

The fourth proportional to 8,791.44, 12,127.64 and 5,204.36 is: 7,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.44 : 12,127.64 = 5,204.36 : x
  2. Step 2: Convert to fraction form
    8,791.44/12,127.64 = 5,204.36/x
  3. Step 3: Cross multiply
    8,791.44x = 12,127.64 × 5,204.36
  4. Step 4: Simplify right side
    8,791.44x = 63,116,604.51
  5. Step 5: Solve for x
    x = 63,116,604.51/8,791.44
  6. Step 6: Final answer
    x = 7,179.32

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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.