Home / 13,784.08-20,664.60-6,393.86

Finding the Fourth Proportional to 13,784.08, 20,664.60 and 6,393.86

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Solution

The fourth proportional to 13,784.08, 20,664.60 and 6,393.86 is: 9,585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.08 : 20,664.60 = 6,393.86 : x
  2. Step 2: Convert to fraction form
    13,784.08/20,664.60 = 6,393.86/x
  3. Step 3: Cross multiply
    13,784.08x = 20,664.60 × 6,393.86
  4. Step 4: Simplify right side
    13,784.08x = 132,126,559.36
  5. Step 5: Solve for x
    x = 132,126,559.36/13,784.08
  6. Step 6: Final answer
    x = 9,585.45

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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.