Home / 19,768.86-27,276.30-12,704.94

Finding the Fourth Proportional to 19,768.86, 27,276.30 and 12,704.94

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Solution

The fourth proportional to 19,768.86, 27,276.30 and 12,704.94 is: 17,529.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.86 : 27,276.30 = 12,704.94 : x
  2. Step 2: Convert to fraction form
    19,768.86/27,276.30 = 12,704.94/x
  3. Step 3: Cross multiply
    19,768.86x = 27,276.30 × 12,704.94
  4. Step 4: Simplify right side
    19,768.86x = 346,543,754.92
  5. Step 5: Solve for x
    x = 346,543,754.92/19,768.86
  6. Step 6: Final answer
    x = 17,529.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.