Home / 12,424.56-18,636.88-3,659.58

Finding the Fourth Proportional to 12,424.56, 18,636.88 and 3,659.58

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Solution

The fourth proportional to 12,424.56, 18,636.88 and 3,659.58 is: 5,489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.56 : 18,636.88 = 3,659.58 : x
  2. Step 2: Convert to fraction form
    12,424.56/18,636.88 = 3,659.58/x
  3. Step 3: Cross multiply
    12,424.56x = 18,636.88 × 3,659.58
  4. Step 4: Simplify right side
    12,424.56x = 68,203,153.31
  5. Step 5: Solve for x
    x = 68,203,153.31/12,424.56
  6. Step 6: Final answer
    x = 5,489.38

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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.