Home / 10,221.30-14,105.52-6,188.07

Finding the Fourth Proportional to 10,221.30, 14,105.52 and 6,188.07

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Solution

The fourth proportional to 10,221.30, 14,105.52 and 6,188.07 is: 8,539.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.30 : 14,105.52 = 6,188.07 : x
  2. Step 2: Convert to fraction form
    10,221.30/14,105.52 = 6,188.07/x
  3. Step 3: Cross multiply
    10,221.30x = 14,105.52 × 6,188.07
  4. Step 4: Simplify right side
    10,221.30x = 87,285,914.21
  5. Step 5: Solve for x
    x = 87,285,914.21/10,221.30
  6. Step 6: Final answer
    x = 8,539.61

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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.