Home / 11,916.28-16,445.21-6,881.41

Finding the Fourth Proportional to 11,916.28, 16,445.21 and 6,881.41

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Solution

The fourth proportional to 11,916.28, 16,445.21 and 6,881.41 is: 9,496.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.28 : 16,445.21 = 6,881.41 : x
  2. Step 2: Convert to fraction form
    11,916.28/16,445.21 = 6,881.41/x
  3. Step 3: Cross multiply
    11,916.28x = 16,445.21 × 6,881.41
  4. Step 4: Simplify right side
    11,916.28x = 113,166,232.55
  5. Step 5: Solve for x
    x = 113,166,232.55/11,916.28
  6. Step 6: Final answer
    x = 9,496.78

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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.