Home / 13,349.20-20,007.60-5,945.80

Finding the Fourth Proportional to 13,349.20, 20,007.60 and 5,945.80

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Solution

The fourth proportional to 13,349.20, 20,007.60 and 5,945.80 is: 8,911.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.20 : 20,007.60 = 5,945.80 : x
  2. Step 2: Convert to fraction form
    13,349.20/20,007.60 = 5,945.80/x
  3. Step 3: Cross multiply
    13,349.20x = 20,007.60 × 5,945.80
  4. Step 4: Simplify right side
    13,349.20x = 118,961,188.08
  5. Step 5: Solve for x
    x = 118,961,188.08/13,349.20
  6. Step 6: Final answer
    x = 8,911.48

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1.5x scale

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.