Home / 13,489.56-20,224.62-8,284.50

Finding the Fourth Proportional to 13,489.56, 20,224.62 and 8,284.50

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Solution

The fourth proportional to 13,489.56, 20,224.62 and 8,284.50 is: 12,420.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.56 : 20,224.62 = 8,284.50 : x
  2. Step 2: Convert to fraction form
    13,489.56/20,224.62 = 8,284.50/x
  3. Step 3: Cross multiply
    13,489.56x = 20,224.62 × 8,284.50
  4. Step 4: Simplify right side
    13,489.56x = 167,550,864.39
  5. Step 5: Solve for x
    x = 167,550,864.39/13,489.56
  6. Step 6: Final answer
    x = 12,420.78

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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.