Home / 14,161.26-19,539.62-8,190.76

Finding the Fourth Proportional to 14,161.26, 19,539.62 and 8,190.76

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Solution

The fourth proportional to 14,161.26, 19,539.62 and 8,190.76 is: 11,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,161.26 : 19,539.62 = 8,190.76 : x
  2. Step 2: Convert to fraction form
    14,161.26/19,539.62 = 8,190.76/x
  3. Step 3: Cross multiply
    14,161.26x = 19,539.62 × 8,190.76
  4. Step 4: Simplify right side
    14,161.26x = 160,044,337.91
  5. Step 5: Solve for x
    x = 160,044,337.91/14,161.26
  6. Step 6: Final answer
    x = 11,301.56

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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.