Home / 10,640.04-15,956.82-5,090.46

Finding the Fourth Proportional to 10,640.04, 15,956.82 and 5,090.46

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Solution

The fourth proportional to 10,640.04, 15,956.82 and 5,090.46 is: 7,634.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.04 : 15,956.82 = 5,090.46 : x
  2. Step 2: Convert to fraction form
    10,640.04/15,956.82 = 5,090.46/x
  3. Step 3: Cross multiply
    10,640.04x = 15,956.82 × 5,090.46
  4. Step 4: Simplify right side
    10,640.04x = 81,227,553.94
  5. Step 5: Solve for x
    x = 81,227,553.94/10,640.04
  6. Step 6: Final answer
    x = 7,634.14

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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.