Home / 7,790.16-11,679.09-4,499.58

Finding the Fourth Proportional to 7,790.16, 11,679.09 and 4,499.58

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Solution

The fourth proportional to 7,790.16, 11,679.09 and 4,499.58 is: 6,745.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.16 : 11,679.09 = 4,499.58 : x
  2. Step 2: Convert to fraction form
    7,790.16/11,679.09 = 4,499.58/x
  3. Step 3: Cross multiply
    7,790.16x = 11,679.09 × 4,499.58
  4. Step 4: Simplify right side
    7,790.16x = 52,550,999.78
  5. Step 5: Solve for x
    x = 52,550,999.78/7,790.16
  6. Step 6: Final answer
    x = 6,745.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.