Home / 7,999.35-11,037.81-4,811.86

Finding the Fourth Proportional to 7,999.35, 11,037.81 and 4,811.86

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Solution

The fourth proportional to 7,999.35, 11,037.81 and 4,811.86 is: 6,639.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.35 : 11,037.81 = 4,811.86 : x
  2. Step 2: Convert to fraction form
    7,999.35/11,037.81 = 4,811.86/x
  3. Step 3: Cross multiply
    7,999.35x = 11,037.81 × 4,811.86
  4. Step 4: Simplify right side
    7,999.35x = 53,112,396.43
  5. Step 5: Solve for x
    x = 53,112,396.43/7,999.35
  6. Step 6: Final answer
    x = 6,639.59

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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.