Home / 26,511.58-39,773.70-7,791.20

Finding the Fourth Proportional to 26,511.58, 39,773.70 and 7,791.20

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Solution

The fourth proportional to 26,511.58, 39,773.70 and 7,791.20 is: 11,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,511.58 : 39,773.70 = 7,791.20 : x
  2. Step 2: Convert to fraction form
    26,511.58/39,773.70 = 7,791.20/x
  3. Step 3: Cross multiply
    26,511.58x = 39,773.70 × 7,791.20
  4. Step 4: Simplify right side
    26,511.58x = 309,884,851.44
  5. Step 5: Solve for x
    x = 309,884,851.44/26,511.58
  6. Step 6: Final answer
    x = 11,688.66

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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.