Home / 10,133.20-15,201.46-4,289.86

Finding the Fourth Proportional to 10,133.20, 15,201.46 and 4,289.86

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Solution

The fourth proportional to 10,133.20, 15,201.46 and 4,289.86 is: 6,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.20 : 15,201.46 = 4,289.86 : x
  2. Step 2: Convert to fraction form
    10,133.20/15,201.46 = 4,289.86/x
  3. Step 3: Cross multiply
    10,133.20x = 15,201.46 × 4,289.86
  4. Step 4: Simplify right side
    10,133.20x = 65,212,135.20
  5. Step 5: Solve for x
    x = 65,212,135.20/10,133.20
  6. Step 6: Final answer
    x = 6,435.49

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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.