Home / 26,505.72-39,748.83-7,780.95

Finding the Fourth Proportional to 26,505.72, 39,748.83 and 7,780.95

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Solution

The fourth proportional to 26,505.72, 39,748.83 and 7,780.95 is: 11,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,505.72 : 39,748.83 = 7,780.95 : x
  2. Step 2: Convert to fraction form
    26,505.72/39,748.83 = 7,780.95/x
  3. Step 3: Cross multiply
    26,505.72x = 39,748.83 × 7,780.95
  4. Step 4: Simplify right side
    26,505.72x = 309,283,658.79
  5. Step 5: Solve for x
    x = 309,283,658.79/26,505.72
  6. Step 6: Final answer
    x = 11,668.56

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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.