Home / 11,221.92-15,485.54-6,185.86

Finding the Fourth Proportional to 11,221.92, 15,485.54 and 6,185.86

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Solution

The fourth proportional to 11,221.92, 15,485.54 and 6,185.86 is: 8,536.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.92 : 15,485.54 = 6,185.86 : x
  2. Step 2: Convert to fraction form
    11,221.92/15,485.54 = 6,185.86/x
  3. Step 3: Cross multiply
    11,221.92x = 15,485.54 × 6,185.86
  4. Step 4: Simplify right side
    11,221.92x = 95,791,312.82
  5. Step 5: Solve for x
    x = 95,791,312.82/11,221.92
  6. Step 6: Final answer
    x = 8,536.09

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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.