Home / 7,768.38-11,640.33-4,842.30

Finding the Fourth Proportional to 7,768.38, 11,640.33 and 4,842.30

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Solution

The fourth proportional to 7,768.38, 11,640.33 and 4,842.30 is: 7,255.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.38 : 11,640.33 = 4,842.30 : x
  2. Step 2: Convert to fraction form
    7,768.38/11,640.33 = 4,842.30/x
  3. Step 3: Cross multiply
    7,768.38x = 11,640.33 × 4,842.30
  4. Step 4: Simplify right side
    7,768.38x = 56,365,969.96
  5. Step 5: Solve for x
    x = 56,365,969.96/7,768.38
  6. Step 6: Final answer
    x = 7,255.82

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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.