Home / 13,784.20-20,670.90-5,014.60

Finding the Fourth Proportional to 13,784.20, 20,670.90 and 5,014.60

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Solution

The fourth proportional to 13,784.20, 20,670.90 and 5,014.60 is: 7,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.20 : 20,670.90 = 5,014.60 : x
  2. Step 2: Convert to fraction form
    13,784.20/20,670.90 = 5,014.60/x
  3. Step 3: Cross multiply
    13,784.20x = 20,670.90 × 5,014.60
  4. Step 4: Simplify right side
    13,784.20x = 103,656,295.14
  5. Step 5: Solve for x
    x = 103,656,295.14/13,784.20
  6. Step 6: Final answer
    x = 7,519.94

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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.