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Finding the Fourth Proportional to 11,638.98, 16,062.98 and 6,860.42

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Solution

The fourth proportional to 11,638.98, 16,062.98 and 6,860.42 is: 9,468.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,638.98 : 16,062.98 = 6,860.42 : x
  2. Step 2: Convert to fraction form
    11,638.98/16,062.98 = 6,860.42/x
  3. Step 3: Cross multiply
    11,638.98x = 16,062.98 × 6,860.42
  4. Step 4: Simplify right side
    11,638.98x = 110,198,674.63
  5. Step 5: Solve for x
    x = 110,198,674.63/11,638.98
  6. Step 6: Final answer
    x = 9,468.07

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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.