Home / 12,327.94-17,001.12-7,847.02

Finding the Fourth Proportional to 12,327.94, 17,001.12 and 7,847.02

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Solution

The fourth proportional to 12,327.94, 17,001.12 and 7,847.02 is: 10,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,327.94 : 17,001.12 = 7,847.02 : x
  2. Step 2: Convert to fraction form
    12,327.94/17,001.12 = 7,847.02/x
  3. Step 3: Cross multiply
    12,327.94x = 17,001.12 × 7,847.02
  4. Step 4: Simplify right side
    12,327.94x = 133,408,128.66
  5. Step 5: Solve for x
    x = 133,408,128.66/12,327.94
  6. Step 6: Final answer
    x = 10,821.61

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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.