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Finding the Fourth Proportional to 8,663.99, 12,996.02 and 2,090.18

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Solution

The fourth proportional to 8,663.99, 12,996.02 and 2,090.18 is: 3,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.99 : 12,996.02 = 2,090.18 : x
  2. Step 2: Convert to fraction form
    8,663.99/12,996.02 = 2,090.18/x
  3. Step 3: Cross multiply
    8,663.99x = 12,996.02 × 2,090.18
  4. Step 4: Simplify right side
    8,663.99x = 27,164,016.37
  5. Step 5: Solve for x
    x = 27,164,016.37/8,663.99
  6. Step 6: Final answer
    x = 3,135.28

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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.