Home / 12,628.62-18,936.24-5,605.58

Finding the Fourth Proportional to 12,628.62, 18,936.24 and 5,605.58

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Solution

The fourth proportional to 12,628.62, 18,936.24 and 5,605.58 is: 8,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.62 : 18,936.24 = 5,605.58 : x
  2. Step 2: Convert to fraction form
    12,628.62/18,936.24 = 5,605.58/x
  3. Step 3: Cross multiply
    12,628.62x = 18,936.24 × 5,605.58
  4. Step 4: Simplify right side
    12,628.62x = 106,148,608.22
  5. Step 5: Solve for x
    x = 106,148,608.22/12,628.62
  6. Step 6: Final answer
    x = 8,405.40

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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.