Home / 16,783.09-25,174.63-7,991.35

Finding the Fourth Proportional to 16,783.09, 25,174.63 and 7,991.35

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Solution

The fourth proportional to 16,783.09, 25,174.63 and 7,991.35 is: 11,987.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,783.09 : 25,174.63 = 7,991.35 : x
  2. Step 2: Convert to fraction form
    16,783.09/25,174.63 = 7,991.35/x
  3. Step 3: Cross multiply
    16,783.09x = 25,174.63 × 7,991.35
  4. Step 4: Simplify right side
    16,783.09x = 201,179,113.62
  5. Step 5: Solve for x
    x = 201,179,113.62/16,783.09
  6. Step 6: Final answer
    x = 11,987.02

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Similar ratio
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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.