Home / 11,916.56-17,871.36-4,515.68

Finding the Fourth Proportional to 11,916.56, 17,871.36 and 4,515.68

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Solution

The fourth proportional to 11,916.56, 17,871.36 and 4,515.68 is: 6,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.56 : 17,871.36 = 4,515.68 : x
  2. Step 2: Convert to fraction form
    11,916.56/17,871.36 = 4,515.68/x
  3. Step 3: Cross multiply
    11,916.56x = 17,871.36 × 4,515.68
  4. Step 4: Simplify right side
    11,916.56x = 80,701,342.92
  5. Step 5: Solve for x
    x = 80,701,342.92/11,916.56
  6. Step 6: Final answer
    x = 6,772.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.