Home / 7,783.53-11,678.73-4,084.86

Finding the Fourth Proportional to 7,783.53, 11,678.73 and 4,084.86

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Solution

The fourth proportional to 7,783.53, 11,678.73 and 4,084.86 is: 6,129.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.53 : 11,678.73 = 4,084.86 : x
  2. Step 2: Convert to fraction form
    7,783.53/11,678.73 = 4,084.86/x
  3. Step 3: Cross multiply
    7,783.53x = 11,678.73 × 4,084.86
  4. Step 4: Simplify right side
    7,783.53x = 47,705,977.03
  5. Step 5: Solve for x
    x = 47,705,977.03/7,783.53
  6. Step 6: Final answer
    x = 6,129.09

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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.