Home / 17,485.62-26,231.31-8,720.82

Finding the Fourth Proportional to 17,485.62, 26,231.31 and 8,720.82

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Solution

The fourth proportional to 17,485.62, 26,231.31 and 8,720.82 is: 13,082.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,485.62 : 26,231.31 = 8,720.82 : x
  2. Step 2: Convert to fraction form
    17,485.62/26,231.31 = 8,720.82/x
  3. Step 3: Cross multiply
    17,485.62x = 26,231.31 × 8,720.82
  4. Step 4: Simplify right side
    17,485.62x = 228,758,532.87
  5. Step 5: Solve for x
    x = 228,758,532.87/17,485.62
  6. Step 6: Final answer
    x = 13,082.67

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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.