Home / 8,255.15-11,391.33-4,670.30

Finding the Fourth Proportional to 8,255.15, 11,391.33 and 4,670.30

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Solution

The fourth proportional to 8,255.15, 11,391.33 and 4,670.30 is: 6,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.15 : 11,391.33 = 4,670.30 : x
  2. Step 2: Convert to fraction form
    8,255.15/11,391.33 = 4,670.30/x
  3. Step 3: Cross multiply
    8,255.15x = 11,391.33 × 4,670.30
  4. Step 4: Simplify right side
    8,255.15x = 53,200,871.54
  5. Step 5: Solve for x
    x = 53,200,871.54/8,255.15
  6. Step 6: Final answer
    x = 6,444.57

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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.