Home / 18,179.37-27,225.30-12,318.21

Finding the Fourth Proportional to 18,179.37, 27,225.30 and 12,318.21

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Solution

The fourth proportional to 18,179.37, 27,225.30 and 12,318.21 is: 18,447.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.37 : 27,225.30 = 12,318.21 : x
  2. Step 2: Convert to fraction form
    18,179.37/27,225.30 = 12,318.21/x
  3. Step 3: Cross multiply
    18,179.37x = 27,225.30 × 12,318.21
  4. Step 4: Simplify right side
    18,179.37x = 335,366,962.71
  5. Step 5: Solve for x
    x = 335,366,962.71/18,179.37
  6. Step 6: Final answer
    x = 18,447.67

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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.