Home / 26,090.73-39,138.90-8,317.20

Finding the Fourth Proportional to 26,090.73, 39,138.90 and 8,317.20

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Solution

The fourth proportional to 26,090.73, 39,138.90 and 8,317.20 is: 12,476.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,090.73 : 39,138.90 = 8,317.20 : x
  2. Step 2: Convert to fraction form
    26,090.73/39,138.90 = 8,317.20/x
  3. Step 3: Cross multiply
    26,090.73x = 39,138.90 × 8,317.20
  4. Step 4: Simplify right side
    26,090.73x = 325,526,059.08
  5. Step 5: Solve for x
    x = 325,526,059.08/26,090.73
  6. Step 6: Final answer
    x = 12,476.69

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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.