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Finding the Fourth Proportional to 19,297.87, 28,947.02 and 6,809.12

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Solution

The fourth proportional to 19,297.87, 28,947.02 and 6,809.12 is: 10,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,297.87 : 28,947.02 = 6,809.12 : x
  2. Step 2: Convert to fraction form
    19,297.87/28,947.02 = 6,809.12/x
  3. Step 3: Cross multiply
    19,297.87x = 28,947.02 × 6,809.12
  4. Step 4: Simplify right side
    19,297.87x = 197,103,732.82
  5. Step 5: Solve for x
    x = 197,103,732.82/19,297.87
  6. Step 6: Final answer
    x = 10,213.76

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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.