Home / 12,107.21-16,708.10-7,327.09

Finding the Fourth Proportional to 12,107.21, 16,708.10 and 7,327.09

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Solution

The fourth proportional to 12,107.21, 16,708.10 and 7,327.09 is: 10,111.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.21 : 16,708.10 = 7,327.09 : x
  2. Step 2: Convert to fraction form
    12,107.21/16,708.10 = 7,327.09/x
  3. Step 3: Cross multiply
    12,107.21x = 16,708.10 × 7,327.09
  4. Step 4: Simplify right side
    12,107.21x = 122,421,836.70
  5. Step 5: Solve for x
    x = 122,421,836.70/12,107.21
  6. Step 6: Final answer
    x = 10,111.48

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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.