Home / 11,913.18-16,441.89-6,876.39

Finding the Fourth Proportional to 11,913.18, 16,441.89 and 6,876.39

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Solution

The fourth proportional to 11,913.18, 16,441.89 and 6,876.39 is: 9,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.18 : 16,441.89 = 6,876.39 : x
  2. Step 2: Convert to fraction form
    11,913.18/16,441.89 = 6,876.39/x
  3. Step 3: Cross multiply
    11,913.18x = 16,441.89 × 6,876.39
  4. Step 4: Simplify right side
    11,913.18x = 113,060,883.85
  5. Step 5: Solve for x
    x = 113,060,883.85/11,913.18
  6. Step 6: Final answer
    x = 9,490.41

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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.