Home / 11,687.03-16,129.13-6,650.18

Finding the Fourth Proportional to 11,687.03, 16,129.13 and 6,650.18

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Solution

The fourth proportional to 11,687.03, 16,129.13 and 6,650.18 is: 9,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687.03 : 16,129.13 = 6,650.18 : x
  2. Step 2: Convert to fraction form
    11,687.03/16,129.13 = 6,650.18/x
  3. Step 3: Cross multiply
    11,687.03x = 16,129.13 × 6,650.18
  4. Step 4: Simplify right side
    11,687.03x = 107,261,518.97
  5. Step 5: Solve for x
    x = 107,261,518.97/11,687.03
  6. Step 6: Final answer
    x = 9,177.82

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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.