Home / 11,861.25-16,368.80-7,676.79

Finding the Fourth Proportional to 11,861.25, 16,368.80 and 7,676.79

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Solution

The fourth proportional to 11,861.25, 16,368.80 and 7,676.79 is: 10,594.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.25 : 16,368.80 = 7,676.79 : x
  2. Step 2: Convert to fraction form
    11,861.25/16,368.80 = 7,676.79/x
  3. Step 3: Cross multiply
    11,861.25x = 16,368.80 × 7,676.79
  4. Step 4: Simplify right side
    11,861.25x = 125,659,801.77
  5. Step 5: Solve for x
    x = 125,659,801.77/11,861.25
  6. Step 6: Final answer
    x = 10,594.14

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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.