Home / 8,505.12-12,757.58-2,661.58

Finding the Fourth Proportional to 8,505.12, 12,757.58 and 2,661.58

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Solution

The fourth proportional to 8,505.12, 12,757.58 and 2,661.58 is: 3,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.12 : 12,757.58 = 2,661.58 : x
  2. Step 2: Convert to fraction form
    8,505.12/12,757.58 = 2,661.58/x
  3. Step 3: Cross multiply
    8,505.12x = 12,757.58 × 2,661.58
  4. Step 4: Simplify right side
    8,505.12x = 33,955,319.78
  5. Step 5: Solve for x
    x = 33,955,319.78/8,505.12
  6. Step 6: Final answer
    x = 3,992.34

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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.