Home / 11,906.40-16,430.46-6,600.90

Finding the Fourth Proportional to 11,906.40, 16,430.46 and 6,600.90

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Solution

The fourth proportional to 11,906.40, 16,430.46 and 6,600.90 is: 9,109.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,906.40 : 16,430.46 = 6,600.90 : x
  2. Step 2: Convert to fraction form
    11,906.40/16,430.46 = 6,600.90/x
  3. Step 3: Cross multiply
    11,906.40x = 16,430.46 × 6,600.90
  4. Step 4: Simplify right side
    11,906.40x = 108,455,823.41
  5. Step 5: Solve for x
    x = 108,455,823.41/11,906.40
  6. Step 6: Final answer
    x = 9,109.04

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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.