Home / 13,349.76-20,021.40-5,558.64

Finding the Fourth Proportional to 13,349.76, 20,021.40 and 5,558.64

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Solution

The fourth proportional to 13,349.76, 20,021.40 and 5,558.64 is: 8,336.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.76 : 20,021.40 = 5,558.64 : x
  2. Step 2: Convert to fraction form
    13,349.76/20,021.40 = 5,558.64/x
  3. Step 3: Cross multiply
    13,349.76x = 20,021.40 × 5,558.64
  4. Step 4: Simplify right side
    13,349.76x = 111,291,754.90
  5. Step 5: Solve for x
    x = 111,291,754.90/13,349.76
  6. Step 6: Final answer
    x = 8,336.61

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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.