Home / 8,311.84-11,469.60-4,774.72

Finding the Fourth Proportional to 8,311.84, 11,469.60 and 4,774.72

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Solution

The fourth proportional to 8,311.84, 11,469.60 and 4,774.72 is: 6,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.84 : 11,469.60 = 4,774.72 : x
  2. Step 2: Convert to fraction form
    8,311.84/11,469.60 = 4,774.72/x
  3. Step 3: Cross multiply
    8,311.84x = 11,469.60 × 4,774.72
  4. Step 4: Simplify right side
    8,311.84x = 54,764,128.51
  5. Step 5: Solve for x
    x = 54,764,128.51/8,311.84
  6. Step 6: Final answer
    x = 6,588.69

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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.