Home / 8,185.79-12,278.67-2,342.39

Finding the Fourth Proportional to 8,185.79, 12,278.67 and 2,342.39

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Solution

The fourth proportional to 8,185.79, 12,278.67 and 2,342.39 is: 3,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.79 : 12,278.67 = 2,342.39 : x
  2. Step 2: Convert to fraction form
    8,185.79/12,278.67 = 2,342.39/x
  3. Step 3: Cross multiply
    8,185.79x = 12,278.67 × 2,342.39
  4. Step 4: Simplify right side
    8,185.79x = 28,761,433.82
  5. Step 5: Solve for x
    x = 28,761,433.82/8,185.79
  6. Step 6: Final answer
    x = 3,513.58

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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.