Home / 18,321.39-27,482.69-5,173.67

Finding the Fourth Proportional to 18,321.39, 27,482.69 and 5,173.67

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Solution

The fourth proportional to 18,321.39, 27,482.69 and 5,173.67 is: 7,760.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.39 : 27,482.69 = 5,173.67 : x
  2. Step 2: Convert to fraction form
    18,321.39/27,482.69 = 5,173.67/x
  3. Step 3: Cross multiply
    18,321.39x = 27,482.69 × 5,173.67
  4. Step 4: Simplify right side
    18,321.39x = 142,186,450.41
  5. Step 5: Solve for x
    x = 142,186,450.41/18,321.39
  6. Step 6: Final answer
    x = 7,760.68

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Similar ratio
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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.