Home / 10,126.90-15,190.50-3,553.14

Finding the Fourth Proportional to 10,126.90, 15,190.50 and 3,553.14

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Solution

The fourth proportional to 10,126.90, 15,190.50 and 3,553.14 is: 5,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.90 : 15,190.50 = 3,553.14 : x
  2. Step 2: Convert to fraction form
    10,126.90/15,190.50 = 3,553.14/x
  3. Step 3: Cross multiply
    10,126.90x = 15,190.50 × 3,553.14
  4. Step 4: Simplify right side
    10,126.90x = 53,973,973.17
  5. Step 5: Solve for x
    x = 53,973,973.17/10,126.90
  6. Step 6: Final answer
    x = 5,329.76

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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.