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Finding the Fourth Proportional to 12,360, 18,540 and 4,152

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Solution

The fourth proportional to 12,360, 18,540 and 4,152 is: 6,228

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360 : 18,540 = 4,152 : x
  2. Step 2: Convert to fraction form
    12,360/18,540 = 4,152/x
  3. Step 3: Cross multiply
    12,360x = 18,540 × 4,152
  4. Step 4: Simplify right side
    12,360x = 76,978,080
  5. Step 5: Solve for x
    x = 76,978,080/12,360
  6. Step 6: Final answer
    x = 6,228

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.