Home / 8,185.85-12,280.70-2,342.51

Finding the Fourth Proportional to 8,185.85, 12,280.70 and 2,342.51

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Solution

The fourth proportional to 8,185.85, 12,280.70 and 2,342.51 is: 3,514.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.85 : 12,280.70 = 2,342.51 : x
  2. Step 2: Convert to fraction form
    8,185.85/12,280.70 = 2,342.51/x
  3. Step 3: Cross multiply
    8,185.85x = 12,280.70 × 2,342.51
  4. Step 4: Simplify right side
    8,185.85x = 28,767,662.56
  5. Step 5: Solve for x
    x = 28,767,662.56/8,185.85
  6. Step 6: Final answer
    x = 3,514.32

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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.