Home / 12,372.48-17,074.32-6,783.52

Finding the Fourth Proportional to 12,372.48, 17,074.32 and 6,783.52

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Solution

The fourth proportional to 12,372.48, 17,074.32 and 6,783.52 is: 9,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.48 : 17,074.32 = 6,783.52 : x
  2. Step 2: Convert to fraction form
    12,372.48/17,074.32 = 6,783.52/x
  3. Step 3: Cross multiply
    12,372.48x = 17,074.32 × 6,783.52
  4. Step 4: Simplify right side
    12,372.48x = 115,823,991.21
  5. Step 5: Solve for x
    x = 115,823,991.21/12,372.48
  6. Step 6: Final answer
    x = 9,361.42

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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.