Home / 13,891.05-19,149.89-8,582.85

Finding the Fourth Proportional to 13,891.05, 19,149.89 and 8,582.85

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Solution

The fourth proportional to 13,891.05, 19,149.89 and 8,582.85 is: 11,832.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.05 : 19,149.89 = 8,582.85 : x
  2. Step 2: Convert to fraction form
    13,891.05/19,149.89 = 8,582.85/x
  3. Step 3: Cross multiply
    13,891.05x = 19,149.89 × 8,582.85
  4. Step 4: Simplify right side
    13,891.05x = 164,360,590.47
  5. Step 5: Solve for x
    x = 164,360,590.47/13,891.05
  6. Step 6: Final answer
    x = 11,832.12

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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.