Home / 14,161.30-19,540.42-8,191.82

Finding the Fourth Proportional to 14,161.30, 19,540.42 and 8,191.82

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Solution

The fourth proportional to 14,161.30, 19,540.42 and 8,191.82 is: 11,303.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,161.30 : 19,540.42 = 8,191.82 : x
  2. Step 2: Convert to fraction form
    14,161.30/19,540.42 = 8,191.82/x
  3. Step 3: Cross multiply
    14,161.30x = 19,540.42 × 8,191.82
  4. Step 4: Simplify right side
    14,161.30x = 160,071,567.90
  5. Step 5: Solve for x
    x = 160,071,567.90/14,161.30
  6. Step 6: Final answer
    x = 11,303.45

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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.