Home / 18,066.30-27,087.87-8,687.64

Finding the Fourth Proportional to 18,066.30, 27,087.87 and 8,687.64

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Solution

The fourth proportional to 18,066.30, 27,087.87 and 8,687.64 is: 13,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,066.30 : 27,087.87 = 8,687.64 : x
  2. Step 2: Convert to fraction form
    18,066.30/27,087.87 = 8,687.64/x
  3. Step 3: Cross multiply
    18,066.30x = 27,087.87 × 8,687.64
  4. Step 4: Simplify right side
    18,066.30x = 235,329,527.49
  5. Step 5: Solve for x
    x = 235,329,527.49/18,066.30
  6. Step 6: Final answer
    x = 13,025.89

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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.