Home / 17,172.18-25,724.85-12,661.02

Finding the Fourth Proportional to 17,172.18, 25,724.85 and 12,661.02

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Solution

The fourth proportional to 17,172.18, 25,724.85 and 12,661.02 is: 18,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,172.18 : 25,724.85 = 12,661.02 : x
  2. Step 2: Convert to fraction form
    17,172.18/25,724.85 = 12,661.02/x
  3. Step 3: Cross multiply
    17,172.18x = 25,724.85 × 12,661.02
  4. Step 4: Simplify right side
    17,172.18x = 325,702,777.04
  5. Step 5: Solve for x
    x = 325,702,777.04/17,172.18
  6. Step 6: Final answer
    x = 18,966.89

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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.