Home / 11,916.81-17,871.74-4,515.93

Finding the Fourth Proportional to 11,916.81, 17,871.74 and 4,515.93

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Solution

The fourth proportional to 11,916.81, 17,871.74 and 4,515.93 is: 6,772.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.81 : 17,871.74 = 4,515.93 : x
  2. Step 2: Convert to fraction form
    11,916.81/17,871.74 = 4,515.93/x
  3. Step 3: Cross multiply
    11,916.81x = 17,871.74 × 4,515.93
  4. Step 4: Simplify right side
    11,916.81x = 80,707,504.24
  5. Step 5: Solve for x
    x = 80,707,504.24/11,916.81
  6. Step 6: Final answer
    x = 6,772.58

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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.