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Finding the Fourth Proportional to 8,661.36, 11,952 and 4,935.36

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Solution

The fourth proportional to 8,661.36, 11,952 and 4,935.36 is: 6,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.36 : 11,952 = 4,935.36 : x
  2. Step 2: Convert to fraction form
    8,661.36/11,952 = 4,935.36/x
  3. Step 3: Cross multiply
    8,661.36x = 11,952 × 4,935.36
  4. Step 4: Simplify right side
    8,661.36x = 58,987,422.72
  5. Step 5: Solve for x
    x = 58,987,422.72/8,661.36
  6. Step 6: Final answer
    x = 6,810.41

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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.