Home / 18,391.73-27,551.43-12,132.63

Finding the Fourth Proportional to 18,391.73, 27,551.43 and 12,132.63

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Solution

The fourth proportional to 18,391.73, 27,551.43 and 12,132.63 is: 18,175.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391.73 : 27,551.43 = 12,132.63 : x
  2. Step 2: Convert to fraction form
    18,391.73/27,551.43 = 12,132.63/x
  3. Step 3: Cross multiply
    18,391.73x = 27,551.43 × 12,132.63
  4. Step 4: Simplify right side
    18,391.73x = 334,271,306.16
  5. Step 5: Solve for x
    x = 334,271,306.16/18,391.73
  6. Step 6: Final answer
    x = 18,175.09

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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.