Home / 18,995.06-28,495.83-8,468.90

Finding the Fourth Proportional to 18,995.06, 28,495.83 and 8,468.90

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Solution

The fourth proportional to 18,995.06, 28,495.83 and 8,468.90 is: 12,704.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,995.06 : 28,495.83 = 8,468.90 : x
  2. Step 2: Convert to fraction form
    18,995.06/28,495.83 = 8,468.90/x
  3. Step 3: Cross multiply
    18,995.06x = 28,495.83 × 8,468.90
  4. Step 4: Simplify right side
    18,995.06x = 241,328,334.69
  5. Step 5: Solve for x
    x = 241,328,334.69/18,995.06
  6. Step 6: Final answer
    x = 12,704.79

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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.