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Finding the Fourth Proportional to 12,204.93, 16,842.96 and 6,899.79

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Solution

The fourth proportional to 12,204.93, 16,842.96 and 6,899.79 is: 9,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.93 : 16,842.96 = 6,899.79 : x
  2. Step 2: Convert to fraction form
    12,204.93/16,842.96 = 6,899.79/x
  3. Step 3: Cross multiply
    12,204.93x = 16,842.96 × 6,899.79
  4. Step 4: Simplify right side
    12,204.93x = 116,212,886.98
  5. Step 5: Solve for x
    x = 116,212,886.98/12,204.93
  6. Step 6: Final answer
    x = 9,521.80

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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.