Home / 17,538.89-26,308.35-8,771.78

Finding the Fourth Proportional to 17,538.89, 26,308.35 and 8,771.78

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Solution

The fourth proportional to 17,538.89, 26,308.35 and 8,771.78 is: 13,157.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,538.89 : 26,308.35 = 8,771.78 : x
  2. Step 2: Convert to fraction form
    17,538.89/26,308.35 = 8,771.78/x
  3. Step 3: Cross multiply
    17,538.89x = 26,308.35 × 8,771.78
  4. Step 4: Simplify right side
    17,538.89x = 230,770,926.82
  5. Step 5: Solve for x
    x = 230,770,926.82/17,538.89
  6. Step 6: Final answer
    x = 13,157.67

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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.