Home / 11,916.45-16,444.82-6,611.36

Finding the Fourth Proportional to 11,916.45, 16,444.82 and 6,611.36

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Solution

The fourth proportional to 11,916.45, 16,444.82 and 6,611.36 is: 9,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.45 : 16,444.82 = 6,611.36 : x
  2. Step 2: Convert to fraction form
    11,916.45/16,444.82 = 6,611.36/x
  3. Step 3: Cross multiply
    11,916.45x = 16,444.82 × 6,611.36
  4. Step 4: Simplify right side
    11,916.45x = 108,722,559.46
  5. Step 5: Solve for x
    x = 108,722,559.46/11,916.45
  6. Step 6: Final answer
    x = 9,123.74

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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.