Home / 12,748.22-19,122.33-3,983.88

Finding the Fourth Proportional to 12,748.22, 19,122.33 and 3,983.88

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Solution

The fourth proportional to 12,748.22, 19,122.33 and 3,983.88 is: 5,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.22 : 19,122.33 = 3,983.88 : x
  2. Step 2: Convert to fraction form
    12,748.22/19,122.33 = 3,983.88/x
  3. Step 3: Cross multiply
    12,748.22x = 19,122.33 × 3,983.88
  4. Step 4: Simplify right side
    12,748.22x = 76,181,068.04
  5. Step 5: Solve for x
    x = 76,181,068.04/12,748.22
  6. Step 6: Final answer
    x = 5,975.82

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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.