Home / 12,647.07-18,973.38-3,882.69

Finding the Fourth Proportional to 12,647.07, 18,973.38 and 3,882.69

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Solution

The fourth proportional to 12,647.07, 18,973.38 and 3,882.69 is: 5,824.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.07 : 18,973.38 = 3,882.69 : x
  2. Step 2: Convert to fraction form
    12,647.07/18,973.38 = 3,882.69/x
  3. Step 3: Cross multiply
    12,647.07x = 18,973.38 × 3,882.69
  4. Step 4: Simplify right side
    12,647.07x = 73,667,752.79
  5. Step 5: Solve for x
    x = 73,667,752.79/12,647.07
  6. Step 6: Final answer
    x = 5,824.89

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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.