Home / 13,633.56-18,814.84-8,330.76

Finding the Fourth Proportional to 13,633.56, 18,814.84 and 8,330.76

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Solution

The fourth proportional to 13,633.56, 18,814.84 and 8,330.76 is: 11,496.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.56 : 18,814.84 = 8,330.76 : x
  2. Step 2: Convert to fraction form
    13,633.56/18,814.84 = 8,330.76/x
  3. Step 3: Cross multiply
    13,633.56x = 18,814.84 × 8,330.76
  4. Step 4: Simplify right side
    13,633.56x = 156,741,916.48
  5. Step 5: Solve for x
    x = 156,741,916.48/13,633.56
  6. Step 6: Final answer
    x = 11,496.77

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.