Home / 13,672.08-20,499.90-5,350.55

Finding the Fourth Proportional to 13,672.08, 20,499.90 and 5,350.55

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Solution

The fourth proportional to 13,672.08, 20,499.90 and 5,350.55 is: 8,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.08 : 20,499.90 = 5,350.55 : x
  2. Step 2: Convert to fraction form
    13,672.08/20,499.90 = 5,350.55/x
  3. Step 3: Cross multiply
    13,672.08x = 20,499.90 × 5,350.55
  4. Step 4: Simplify right side
    13,672.08x = 109,685,637.45
  5. Step 5: Solve for x
    x = 109,685,637.45/13,672.08
  6. Step 6: Final answer
    x = 8,022.60

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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.