Home / 11,660.39-16,091.36-6,355.20

Finding the Fourth Proportional to 11,660.39, 16,091.36 and 6,355.20

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Solution

The fourth proportional to 11,660.39, 16,091.36 and 6,355.20 is: 8,770.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,660.39 : 16,091.36 = 6,355.20 : x
  2. Step 2: Convert to fraction form
    11,660.39/16,091.36 = 6,355.20/x
  3. Step 3: Cross multiply
    11,660.39x = 16,091.36 × 6,355.20
  4. Step 4: Simplify right side
    11,660.39x = 102,263,779.30
  5. Step 5: Solve for x
    x = 102,263,779.30/11,660.39
  6. Step 6: Final answer
    x = 8,770.19

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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.