Home / 8,505.30-12,755.93-3,240.86

Finding the Fourth Proportional to 8,505.30, 12,755.93 and 3,240.86

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Solution

The fourth proportional to 8,505.30, 12,755.93 and 3,240.86 is: 4,860.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.30 : 12,755.93 = 3,240.86 : x
  2. Step 2: Convert to fraction form
    8,505.30/12,755.93 = 3,240.86/x
  3. Step 3: Cross multiply
    8,505.30x = 12,755.93 × 3,240.86
  4. Step 4: Simplify right side
    8,505.30x = 41,340,193.30
  5. Step 5: Solve for x
    x = 41,340,193.30/8,505.30
  6. Step 6: Final answer
    x = 4,860.52

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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.