Home / 19,107.63-28,662.18-9,107.22

Finding the Fourth Proportional to 19,107.63, 28,662.18 and 9,107.22

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Solution

The fourth proportional to 19,107.63, 28,662.18 and 9,107.22 is: 13,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,107.63 : 28,662.18 = 9,107.22 : x
  2. Step 2: Convert to fraction form
    19,107.63/28,662.18 = 9,107.22/x
  3. Step 3: Cross multiply
    19,107.63x = 28,662.18 × 9,107.22
  4. Step 4: Simplify right side
    19,107.63x = 261,032,778.94
  5. Step 5: Solve for x
    x = 261,032,778.94/19,107.63
  6. Step 6: Final answer
    x = 13,661.18

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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.