Home / 12,160.79-16,795.73-8,174.99

Finding the Fourth Proportional to 12,160.79, 16,795.73 and 8,174.99

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Solution

The fourth proportional to 12,160.79, 16,795.73 and 8,174.99 is: 11,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.79 : 16,795.73 = 8,174.99 : x
  2. Step 2: Convert to fraction form
    12,160.79/16,795.73 = 8,174.99/x
  3. Step 3: Cross multiply
    12,160.79x = 16,795.73 × 8,174.99
  4. Step 4: Simplify right side
    12,160.79x = 137,304,924.79
  5. Step 5: Solve for x
    x = 137,304,924.79/12,160.79
  6. Step 6: Final answer
    x = 11,290.79

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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.