Home / 14,936.27-20,611.34-8,221.76

Finding the Fourth Proportional to 14,936.27, 20,611.34 and 8,221.76

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Solution

The fourth proportional to 14,936.27, 20,611.34 and 8,221.76 is: 11,345.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,936.27 : 20,611.34 = 8,221.76 : x
  2. Step 2: Convert to fraction form
    14,936.27/20,611.34 = 8,221.76/x
  3. Step 3: Cross multiply
    14,936.27x = 20,611.34 × 8,221.76
  4. Step 4: Simplify right side
    14,936.27x = 169,461,500.96
  5. Step 5: Solve for x
    x = 169,461,500.96/14,936.27
  6. Step 6: Final answer
    x = 11,345.64

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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.