Home / 7,430.67-10,255.77-4,912.92

Finding the Fourth Proportional to 7,430.67, 10,255.77 and 4,912.92

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Solution

The fourth proportional to 7,430.67, 10,255.77 and 4,912.92 is: 6,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.67 : 10,255.77 = 4,912.92 : x
  2. Step 2: Convert to fraction form
    7,430.67/10,255.77 = 4,912.92/x
  3. Step 3: Cross multiply
    7,430.67x = 10,255.77 × 4,912.92
  4. Step 4: Simplify right side
    7,430.67x = 50,385,777.55
  5. Step 5: Solve for x
    x = 50,385,777.55/7,430.67
  6. Step 6: Final answer
    x = 6,780.79

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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.