Home / 11,409.06-15,742.83-6,372.66

Finding the Fourth Proportional to 11,409.06, 15,742.83 and 6,372.66

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Solution

The fourth proportional to 11,409.06, 15,742.83 and 6,372.66 is: 8,793.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.06 : 15,742.83 = 6,372.66 : x
  2. Step 2: Convert to fraction form
    11,409.06/15,742.83 = 6,372.66/x
  3. Step 3: Cross multiply
    11,409.06x = 15,742.83 × 6,372.66
  4. Step 4: Simplify right side
    11,409.06x = 100,323,703.03
  5. Step 5: Solve for x
    x = 100,323,703.03/11,409.06
  6. Step 6: Final answer
    x = 8,793.34

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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.