Home / 10,147.04-15,221.76-3,905.60

Finding the Fourth Proportional to 10,147.04, 15,221.76 and 3,905.60

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Solution

The fourth proportional to 10,147.04, 15,221.76 and 3,905.60 is: 5,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.04 : 15,221.76 = 3,905.60 : x
  2. Step 2: Convert to fraction form
    10,147.04/15,221.76 = 3,905.60/x
  3. Step 3: Cross multiply
    10,147.04x = 15,221.76 × 3,905.60
  4. Step 4: Simplify right side
    10,147.04x = 59,450,105.86
  5. Step 5: Solve for x
    x = 59,450,105.86/10,147.04
  6. Step 6: Final answer
    x = 5,858.86

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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.