Home / 11,178-16,760.36-4,934.88

Finding the Fourth Proportional to 11,178, 16,760.36 and 4,934.88

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Solution

The fourth proportional to 11,178, 16,760.36 and 4,934.88 is: 7,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178 : 16,760.36 = 4,934.88 : x
  2. Step 2: Convert to fraction form
    11,178/16,760.36 = 4,934.88/x
  3. Step 3: Cross multiply
    11,178x = 16,760.36 × 4,934.88
  4. Step 4: Simplify right side
    11,178x = 82,710,365.36
  5. Step 5: Solve for x
    x = 82,710,365.36/11,178
  6. Step 6: Final answer
    x = 7,399.39

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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.