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Finding the Fourth Proportional to 19,179.76, 28,741.68 and 8,493.22

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Solution

The fourth proportional to 19,179.76, 28,741.68 and 8,493.22 is: 12,727.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.76 : 28,741.68 = 8,493.22 : x
  2. Step 2: Convert to fraction form
    19,179.76/28,741.68 = 8,493.22/x
  3. Step 3: Cross multiply
    19,179.76x = 28,741.68 × 8,493.22
  4. Step 4: Simplify right side
    19,179.76x = 244,109,411.41
  5. Step 5: Solve for x
    x = 244,109,411.41/19,179.76
  6. Step 6: Final answer
    x = 12,727.45

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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.