Home / 12,194.89-16,830.32-6,890.04

Finding the Fourth Proportional to 12,194.89, 16,830.32 and 6,890.04

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Solution

The fourth proportional to 12,194.89, 16,830.32 and 6,890.04 is: 9,509.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,194.89 : 16,830.32 = 6,890.04 : x
  2. Step 2: Convert to fraction form
    12,194.89/16,830.32 = 6,890.04/x
  3. Step 3: Cross multiply
    12,194.89x = 16,830.32 × 6,890.04
  4. Step 4: Simplify right side
    12,194.89x = 115,961,578.01
  5. Step 5: Solve for x
    x = 115,961,578.01/12,194.89
  6. Step 6: Final answer
    x = 9,509.03

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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.