Home / 14,190.21-19,583.14-8,142.25

Finding the Fourth Proportional to 14,190.21, 19,583.14 and 8,142.25

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Solution

The fourth proportional to 14,190.21, 19,583.14 and 8,142.25 is: 11,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.21 : 19,583.14 = 8,142.25 : x
  2. Step 2: Convert to fraction form
    14,190.21/19,583.14 = 8,142.25/x
  3. Step 3: Cross multiply
    14,190.21x = 19,583.14 × 8,142.25
  4. Step 4: Simplify right side
    14,190.21x = 159,450,821.67
  5. Step 5: Solve for x
    x = 159,450,821.67/14,190.21
  6. Step 6: Final answer
    x = 11,236.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.