Home / 13,580.28-20,364.63-6,189.44

Finding the Fourth Proportional to 13,580.28, 20,364.63 and 6,189.44

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Solution

The fourth proportional to 13,580.28, 20,364.63 and 6,189.44 is: 9,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.28 : 20,364.63 = 6,189.44 : x
  2. Step 2: Convert to fraction form
    13,580.28/20,364.63 = 6,189.44/x
  3. Step 3: Cross multiply
    13,580.28x = 20,364.63 × 6,189.44
  4. Step 4: Simplify right side
    13,580.28x = 126,045,553.68
  5. Step 5: Solve for x
    x = 126,045,553.68/13,580.28
  6. Step 6: Final answer
    x = 9,281.51

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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.