Home / 19,113.94-28,633.62-12,520.12

Finding the Fourth Proportional to 19,113.94, 28,633.62 and 12,520.12

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Solution

The fourth proportional to 19,113.94, 28,633.62 and 12,520.12 is: 18,755.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.94 : 28,633.62 = 12,520.12 : x
  2. Step 2: Convert to fraction form
    19,113.94/28,633.62 = 12,520.12/x
  3. Step 3: Cross multiply
    19,113.94x = 28,633.62 × 12,520.12
  4. Step 4: Simplify right side
    19,113.94x = 358,496,358.43
  5. Step 5: Solve for x
    x = 358,496,358.43/19,113.94
  6. Step 6: Final answer
    x = 18,755.75

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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.