Home / 7,845.76-11,771.52-5,656.96

Finding the Fourth Proportional to 7,845.76, 11,771.52 and 5,656.96

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Solution

The fourth proportional to 7,845.76, 11,771.52 and 5,656.96 is: 8,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.76 : 11,771.52 = 5,656.96 : x
  2. Step 2: Convert to fraction form
    7,845.76/11,771.52 = 5,656.96/x
  3. Step 3: Cross multiply
    7,845.76x = 11,771.52 × 5,656.96
  4. Step 4: Simplify right side
    7,845.76x = 66,591,017.78
  5. Step 5: Solve for x
    x = 66,591,017.78/7,845.76
  6. Step 6: Final answer
    x = 8,487.52

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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.