Home / 12,942.71-19,409.26-4,620.50

Finding the Fourth Proportional to 12,942.71, 19,409.26 and 4,620.50

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Solution

The fourth proportional to 12,942.71, 19,409.26 and 4,620.50 is: 6,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.71 : 19,409.26 = 4,620.50 : x
  2. Step 2: Convert to fraction form
    12,942.71/19,409.26 = 4,620.50/x
  3. Step 3: Cross multiply
    12,942.71x = 19,409.26 × 4,620.50
  4. Step 4: Simplify right side
    12,942.71x = 89,680,485.83
  5. Step 5: Solve for x
    x = 89,680,485.83/12,942.71
  6. Step 6: Final answer
    x = 6,929.03

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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.