Home / 9,112.54-13,661.82-4,178.64

Finding the Fourth Proportional to 9,112.54, 13,661.82 and 4,178.64

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Solution

The fourth proportional to 9,112.54, 13,661.82 and 4,178.64 is: 6,264.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.54 : 13,661.82 = 4,178.64 : x
  2. Step 2: Convert to fraction form
    9,112.54/13,661.82 = 4,178.64/x
  3. Step 3: Cross multiply
    9,112.54x = 13,661.82 × 4,178.64
  4. Step 4: Simplify right side
    9,112.54x = 57,087,827.52
  5. Step 5: Solve for x
    x = 57,087,827.52/9,112.54
  6. Step 6: Final answer
    x = 6,264.75

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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.