Home / 18,546.23-25,579.85-12,880.99

Finding the Fourth Proportional to 18,546.23, 25,579.85 and 12,880.99

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Solution

The fourth proportional to 18,546.23, 25,579.85 and 12,880.99 is: 17,766.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,546.23 : 25,579.85 = 12,880.99 : x
  2. Step 2: Convert to fraction form
    18,546.23/25,579.85 = 12,880.99/x
  3. Step 3: Cross multiply
    18,546.23x = 25,579.85 × 12,880.99
  4. Step 4: Simplify right side
    18,546.23x = 329,493,599.75
  5. Step 5: Solve for x
    x = 329,493,599.75/18,546.23
  6. Step 6: Final answer
    x = 17,766.07

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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.