Home / 19,156.09-28,709.80-8,614.85

Finding the Fourth Proportional to 19,156.09, 28,709.80 and 8,614.85

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Solution

The fourth proportional to 19,156.09, 28,709.80 and 8,614.85 is: 12,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.09 : 28,709.80 = 8,614.85 : x
  2. Step 2: Convert to fraction form
    19,156.09/28,709.80 = 8,614.85/x
  3. Step 3: Cross multiply
    19,156.09x = 28,709.80 × 8,614.85
  4. Step 4: Simplify right side
    19,156.09x = 247,330,433.91
  5. Step 5: Solve for x
    x = 247,330,433.91/19,156.09
  6. Step 6: Final answer
    x = 12,911.32

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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.