Home / 12,588.03-18,887.17-8,090.12

Finding the Fourth Proportional to 12,588.03, 18,887.17 and 8,090.12

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Solution

The fourth proportional to 12,588.03, 18,887.17 and 8,090.12 is: 12,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.03 : 18,887.17 = 8,090.12 : x
  2. Step 2: Convert to fraction form
    12,588.03/18,887.17 = 8,090.12/x
  3. Step 3: Cross multiply
    12,588.03x = 18,887.17 × 8,090.12
  4. Step 4: Simplify right side
    12,588.03x = 152,799,517.73
  5. Step 5: Solve for x
    x = 152,799,517.73/12,588.03
  6. Step 6: Final answer
    x = 12,138.48

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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.