Home / 14,401.08-21,570.30-6,989.94

Finding the Fourth Proportional to 14,401.08, 21,570.30 and 6,989.94

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Solution

The fourth proportional to 14,401.08, 21,570.30 and 6,989.94 is: 10,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,401.08 : 21,570.30 = 6,989.94 : x
  2. Step 2: Convert to fraction form
    14,401.08/21,570.30 = 6,989.94/x
  3. Step 3: Cross multiply
    14,401.08x = 21,570.30 × 6,989.94
  4. Step 4: Simplify right side
    14,401.08x = 150,775,102.78
  5. Step 5: Solve for x
    x = 150,775,102.78/14,401.08
  6. Step 6: Final answer
    x = 10,469.71

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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.