Home / 12,246.39-16,899.84-6,940.89

Finding the Fourth Proportional to 12,246.39, 16,899.84 and 6,940.89

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Solution

The fourth proportional to 12,246.39, 16,899.84 and 6,940.89 is: 9,578.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.39 : 16,899.84 = 6,940.89 : x
  2. Step 2: Convert to fraction form
    12,246.39/16,899.84 = 6,940.89/x
  3. Step 3: Cross multiply
    12,246.39x = 16,899.84 × 6,940.89
  4. Step 4: Simplify right side
    12,246.39x = 117,299,930.46
  5. Step 5: Solve for x
    x = 117,299,930.46/12,246.39
  6. Step 6: Final answer
    x = 9,578.33

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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.