Home / 11,741.78-16,203.70-6,436.68

Finding the Fourth Proportional to 11,741.78, 16,203.70 and 6,436.68

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Solution

The fourth proportional to 11,741.78, 16,203.70 and 6,436.68 is: 8,882.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,741.78 : 16,203.70 = 6,436.68 : x
  2. Step 2: Convert to fraction form
    11,741.78/16,203.70 = 6,436.68/x
  3. Step 3: Cross multiply
    11,741.78x = 16,203.70 × 6,436.68
  4. Step 4: Simplify right side
    11,741.78x = 104,298,031.72
  5. Step 5: Solve for x
    x = 104,298,031.72/11,741.78
  6. Step 6: Final answer
    x = 8,882.64

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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.