Home / 18,517.05-27,779.90-5,369.67

Finding the Fourth Proportional to 18,517.05, 27,779.90 and 5,369.67

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Solution

The fourth proportional to 18,517.05, 27,779.90 and 5,369.67 is: 8,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.05 : 27,779.90 = 5,369.67 : x
  2. Step 2: Convert to fraction form
    18,517.05/27,779.90 = 5,369.67/x
  3. Step 3: Cross multiply
    18,517.05x = 27,779.90 × 5,369.67
  4. Step 4: Simplify right side
    18,517.05x = 149,168,868.78
  5. Step 5: Solve for x
    x = 149,168,868.78/18,517.05
  6. Step 6: Final answer
    x = 8,055.76

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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.