Home / 10,126.90-15,192.60-3,107.89

Finding the Fourth Proportional to 10,126.90, 15,192.60 and 3,107.89

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Solution

The fourth proportional to 10,126.90, 15,192.60 and 3,107.89 is: 4,662.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.90 : 15,192.60 = 3,107.89 : x
  2. Step 2: Convert to fraction form
    10,126.90/15,192.60 = 3,107.89/x
  3. Step 3: Cross multiply
    10,126.90x = 15,192.60 × 3,107.89
  4. Step 4: Simplify right side
    10,126.90x = 47,216,929.61
  5. Step 5: Solve for x
    x = 47,216,929.61/10,126.90
  6. Step 6: Final answer
    x = 4,662.53

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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.