Home / 11,676.72-16,113.60-6,641.76

Finding the Fourth Proportional to 11,676.72, 16,113.60 and 6,641.76

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Solution

The fourth proportional to 11,676.72, 16,113.60 and 6,641.76 is: 9,165.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,676.72 : 16,113.60 = 6,641.76 : x
  2. Step 2: Convert to fraction form
    11,676.72/16,113.60 = 6,641.76/x
  3. Step 3: Cross multiply
    11,676.72x = 16,113.60 × 6,641.76
  4. Step 4: Simplify right side
    11,676.72x = 107,022,663.94
  5. Step 5: Solve for x
    x = 107,022,663.94/11,676.72
  6. Step 6: Final answer
    x = 9,165.47

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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.