Home / 13,496.56-20,204.70-8,215.72

Finding the Fourth Proportional to 13,496.56, 20,204.70 and 8,215.72

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Solution

The fourth proportional to 13,496.56, 20,204.70 and 8,215.72 is: 12,299.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,496.56 : 20,204.70 = 8,215.72 : x
  2. Step 2: Convert to fraction form
    13,496.56/20,204.70 = 8,215.72/x
  3. Step 3: Cross multiply
    13,496.56x = 20,204.70 × 8,215.72
  4. Step 4: Simplify right side
    13,496.56x = 165,996,157.88
  5. Step 5: Solve for x
    x = 165,996,157.88/13,496.56
  6. Step 6: Final answer
    x = 12,299.15

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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.