Home / 11,699.89-16,145.60-6,394.74

Finding the Fourth Proportional to 11,699.89, 16,145.60 and 6,394.74

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Solution

The fourth proportional to 11,699.89, 16,145.60 and 6,394.74 is: 8,824.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.89 : 16,145.60 = 6,394.74 : x
  2. Step 2: Convert to fraction form
    11,699.89/16,145.60 = 6,394.74/x
  3. Step 3: Cross multiply
    11,699.89x = 16,145.60 × 6,394.74
  4. Step 4: Simplify right side
    11,699.89x = 103,246,930.13
  5. Step 5: Solve for x
    x = 103,246,930.13/11,699.89
  6. Step 6: Final answer
    x = 8,824.61

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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.