Home / 12,030-18,054.72-6,188.28

Finding the Fourth Proportional to 12,030, 18,054.72 and 6,188.28

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Solution

The fourth proportional to 12,030, 18,054.72 and 6,188.28 is: 9,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030 : 18,054.72 = 6,188.28 : x
  2. Step 2: Convert to fraction form
    12,030/18,054.72 = 6,188.28/x
  3. Step 3: Cross multiply
    12,030x = 18,054.72 × 6,188.28
  4. Step 4: Simplify right side
    12,030x = 111,727,662.68
  5. Step 5: Solve for x
    x = 111,727,662.68/12,030
  6. Step 6: Final answer
    x = 9,287.42

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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.