Home / 11,739-16,199.88-6,433.56

Finding the Fourth Proportional to 11,739, 16,199.88 and 6,433.56

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Solution

The fourth proportional to 11,739, 16,199.88 and 6,433.56 is: 8,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,739 : 16,199.88 = 6,433.56 : x
  2. Step 2: Convert to fraction form
    11,739/16,199.88 = 6,433.56/x
  3. Step 3: Cross multiply
    11,739x = 16,199.88 × 6,433.56
  4. Step 4: Simplify right side
    11,739x = 104,222,899.97
  5. Step 5: Solve for x
    x = 104,222,899.97/11,739
  6. Step 6: Final answer
    x = 8,878.35

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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.