Home / 13,209.72-19,801.26-8,282.82

Finding the Fourth Proportional to 13,209.72, 19,801.26 and 8,282.82

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Solution

The fourth proportional to 13,209.72, 19,801.26 and 8,282.82 is: 12,415.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.72 : 19,801.26 = 8,282.82 : x
  2. Step 2: Convert to fraction form
    13,209.72/19,801.26 = 8,282.82/x
  3. Step 3: Cross multiply
    13,209.72x = 19,801.26 × 8,282.82
  4. Step 4: Simplify right side
    13,209.72x = 164,010,272.35
  5. Step 5: Solve for x
    x = 164,010,272.35/13,209.72
  6. Step 6: Final answer
    x = 12,415.88

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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.