Home / 14,121.07-21,181.10-4,260.09

Finding the Fourth Proportional to 14,121.07, 21,181.10 and 4,260.09

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Solution

The fourth proportional to 14,121.07, 21,181.10 and 4,260.09 is: 6,389.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.07 : 21,181.10 = 4,260.09 : x
  2. Step 2: Convert to fraction form
    14,121.07/21,181.10 = 4,260.09/x
  3. Step 3: Cross multiply
    14,121.07x = 21,181.10 × 4,260.09
  4. Step 4: Simplify right side
    14,121.07x = 90,233,450.43
  5. Step 5: Solve for x
    x = 90,233,450.43/14,121.07
  6. Step 6: Final answer
    x = 6,389.99

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1.5x scale

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.