Home / 11,911.96-16,437.32-6,877.80

Finding the Fourth Proportional to 11,911.96, 16,437.32 and 6,877.80

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Solution

The fourth proportional to 11,911.96, 16,437.32 and 6,877.80 is: 9,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.96 : 16,437.32 = 6,877.80 : x
  2. Step 2: Convert to fraction form
    11,911.96/16,437.32 = 6,877.80/x
  3. Step 3: Cross multiply
    11,911.96x = 16,437.32 × 6,877.80
  4. Step 4: Simplify right side
    11,911.96x = 113,052,599.50
  5. Step 5: Solve for x
    x = 113,052,599.50/11,911.96
  6. Step 6: Final answer
    x = 9,490.68

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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.