Home / 14,107.19-19,469.94-8,140.91

Finding the Fourth Proportional to 14,107.19, 19,469.94 and 8,140.91

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Solution

The fourth proportional to 14,107.19, 19,469.94 and 8,140.91 is: 11,235.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.19 : 19,469.94 = 8,140.91 : x
  2. Step 2: Convert to fraction form
    14,107.19/19,469.94 = 8,140.91/x
  3. Step 3: Cross multiply
    14,107.19x = 19,469.94 × 8,140.91
  4. Step 4: Simplify right side
    14,107.19x = 158,503,029.25
  5. Step 5: Solve for x
    x = 158,503,029.25/14,107.19
  6. Step 6: Final answer
    x = 11,235.62

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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.