Home / 18,660.85-25,757.27-12,292.09

Finding the Fourth Proportional to 18,660.85, 25,757.27 and 12,292.09

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Solution

The fourth proportional to 18,660.85, 25,757.27 and 12,292.09 is: 16,966.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.85 : 25,757.27 = 12,292.09 : x
  2. Step 2: Convert to fraction form
    18,660.85/25,757.27 = 12,292.09/x
  3. Step 3: Cross multiply
    18,660.85x = 25,757.27 × 12,292.09
  4. Step 4: Simplify right side
    18,660.85x = 316,610,619.53
  5. Step 5: Solve for x
    x = 316,610,619.53/18,660.85
  6. Step 6: Final answer
    x = 16,966.57

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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.