Home / 16,999.28-25,509.72-6,611.12

Finding the Fourth Proportional to 16,999.28, 25,509.72 and 6,611.12

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Solution

The fourth proportional to 16,999.28, 25,509.72 and 6,611.12 is: 9,920.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.28 : 25,509.72 = 6,611.12 : x
  2. Step 2: Convert to fraction form
    16,999.28/25,509.72 = 6,611.12/x
  3. Step 3: Cross multiply
    16,999.28x = 25,509.72 × 6,611.12
  4. Step 4: Simplify right side
    16,999.28x = 168,647,820.09
  5. Step 5: Solve for x
    x = 168,647,820.09/16,999.28
  6. Step 6: Final answer
    x = 9,920.88

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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.