Home / 11,944.90-16,483.26-6,639.40

Finding the Fourth Proportional to 11,944.90, 16,483.26 and 6,639.40

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Solution

The fourth proportional to 11,944.90, 16,483.26 and 6,639.40 is: 9,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,944.90 : 16,483.26 = 6,639.40 : x
  2. Step 2: Convert to fraction form
    11,944.90/16,483.26 = 6,639.40/x
  3. Step 3: Cross multiply
    11,944.90x = 16,483.26 × 6,639.40
  4. Step 4: Simplify right side
    11,944.90x = 109,438,956.44
  5. Step 5: Solve for x
    x = 109,438,956.44/11,944.90
  6. Step 6: Final answer
    x = 9,161.98

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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.