Home / 10,021.25-15,027.53-4,757.78

Finding the Fourth Proportional to 10,021.25, 15,027.53 and 4,757.78

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Solution

The fourth proportional to 10,021.25, 15,027.53 and 4,757.78 is: 7,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.25 : 15,027.53 = 4,757.78 : x
  2. Step 2: Convert to fraction form
    10,021.25/15,027.53 = 4,757.78/x
  3. Step 3: Cross multiply
    10,021.25x = 15,027.53 × 4,757.78
  4. Step 4: Simplify right side
    10,021.25x = 71,497,582.76
  5. Step 5: Solve for x
    x = 71,497,582.76/10,021.25
  6. Step 6: Final answer
    x = 7,134.60

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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.