Home / 12,623.45-18,938.87-3,739.01

Finding the Fourth Proportional to 12,623.45, 18,938.87 and 3,739.01

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Solution

The fourth proportional to 12,623.45, 18,938.87 and 3,739.01 is: 5,609.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.45 : 18,938.87 = 3,739.01 : x
  2. Step 2: Convert to fraction form
    12,623.45/18,938.87 = 3,739.01/x
  3. Step 3: Cross multiply
    12,623.45x = 18,938.87 × 3,739.01
  4. Step 4: Simplify right side
    12,623.45x = 70,812,605.62
  5. Step 5: Solve for x
    x = 70,812,605.62/12,623.45
  6. Step 6: Final answer
    x = 5,609.61

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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.