Home / 18,420.65-27,635.30-7,327.97

Finding the Fourth Proportional to 18,420.65, 27,635.30 and 7,327.97

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Solution

The fourth proportional to 18,420.65, 27,635.30 and 7,327.97 is: 10,993.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.65 : 27,635.30 = 7,327.97 : x
  2. Step 2: Convert to fraction form
    18,420.65/27,635.30 = 7,327.97/x
  3. Step 3: Cross multiply
    18,420.65x = 27,635.30 × 7,327.97
  4. Step 4: Simplify right side
    18,420.65x = 202,510,612.70
  5. Step 5: Solve for x
    x = 202,510,612.70/18,420.65
  6. Step 6: Final answer
    x = 10,993.67

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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.