Home / 11,876.34-16,388.86-6,840.76

Finding the Fourth Proportional to 11,876.34, 16,388.86 and 6,840.76

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Solution

The fourth proportional to 11,876.34, 16,388.86 and 6,840.76 is: 9,439.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,876.34 : 16,388.86 = 6,840.76 : x
  2. Step 2: Convert to fraction form
    11,876.34/16,388.86 = 6,840.76/x
  3. Step 3: Cross multiply
    11,876.34x = 16,388.86 × 6,840.76
  4. Step 4: Simplify right side
    11,876.34x = 112,112,257.93
  5. Step 5: Solve for x
    x = 112,112,257.93/11,876.34
  6. Step 6: Final answer
    x = 9,439.97

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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.