Home / 11,651.23-16,079.34-6,615.60

Finding the Fourth Proportional to 11,651.23, 16,079.34 and 6,615.60

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Solution

The fourth proportional to 11,651.23, 16,079.34 and 6,615.60 is: 9,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,651.23 : 16,079.34 = 6,615.60 : x
  2. Step 2: Convert to fraction form
    11,651.23/16,079.34 = 6,615.60/x
  3. Step 3: Cross multiply
    11,651.23x = 16,079.34 × 6,615.60
  4. Step 4: Simplify right side
    11,651.23x = 106,374,481.70
  5. Step 5: Solve for x
    x = 106,374,481.70/11,651.23
  6. Step 6: Final answer
    x = 9,129.89

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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.