Home / 14,087.49-21,131.21-4,226.78

Finding the Fourth Proportional to 14,087.49, 21,131.21 and 4,226.78

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Solution

The fourth proportional to 14,087.49, 21,131.21 and 4,226.78 is: 6,340.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.49 : 21,131.21 = 4,226.78 : x
  2. Step 2: Convert to fraction form
    14,087.49/21,131.21 = 4,226.78/x
  3. Step 3: Cross multiply
    14,087.49x = 21,131.21 × 4,226.78
  4. Step 4: Simplify right side
    14,087.49x = 89,317,039.20
  5. Step 5: Solve for x
    x = 89,317,039.20/14,087.49
  6. Step 6: Final answer
    x = 6,340.17

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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.