Home / 19,219.65-28,832.45-8,126.39

Finding the Fourth Proportional to 19,219.65, 28,832.45 and 8,126.39

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Solution

The fourth proportional to 19,219.65, 28,832.45 and 8,126.39 is: 12,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.65 : 28,832.45 = 8,126.39 : x
  2. Step 2: Convert to fraction form
    19,219.65/28,832.45 = 8,126.39/x
  3. Step 3: Cross multiply
    19,219.65x = 28,832.45 × 8,126.39
  4. Step 4: Simplify right side
    19,219.65x = 234,303,548.56
  5. Step 5: Solve for x
    x = 234,303,548.56/19,219.65
  6. Step 6: Final answer
    x = 12,190.83

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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.