Home / 19,847.87-29,771.84-8,006.78

Finding the Fourth Proportional to 19,847.87, 29,771.84 and 8,006.78

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Solution

The fourth proportional to 19,847.87, 29,771.84 and 8,006.78 is: 12,010.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,847.87 : 29,771.84 = 8,006.78 : x
  2. Step 2: Convert to fraction form
    19,847.87/29,771.84 = 8,006.78/x
  3. Step 3: Cross multiply
    19,847.87x = 29,771.84 × 8,006.78
  4. Step 4: Simplify right side
    19,847.87x = 238,376,573.08
  5. Step 5: Solve for x
    x = 238,376,573.08/19,847.87
  6. Step 6: Final answer
    x = 12,010.18

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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.