Home / 19,766.82-27,270-12,958.98

Finding the Fourth Proportional to 19,766.82, 27,270 and 12,958.98

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Solution

The fourth proportional to 19,766.82, 27,270 and 12,958.98 is: 17,878.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,766.82 : 27,270 = 12,958.98 : x
  2. Step 2: Convert to fraction form
    19,766.82/27,270 = 12,958.98/x
  3. Step 3: Cross multiply
    19,766.82x = 27,270 × 12,958.98
  4. Step 4: Simplify right side
    19,766.82x = 353,391,384.60
  5. Step 5: Solve for x
    x = 353,391,384.60/19,766.82
  6. Step 6: Final answer
    x = 17,878.01

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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.