Home / 8,916.09-13,382.24-3,984.81

Finding the Fourth Proportional to 8,916.09, 13,382.24 and 3,984.81

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Solution

The fourth proportional to 8,916.09, 13,382.24 and 3,984.81 is: 5,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.09 : 13,382.24 = 3,984.81 : x
  2. Step 2: Convert to fraction form
    8,916.09/13,382.24 = 3,984.81/x
  3. Step 3: Cross multiply
    8,916.09x = 13,382.24 × 3,984.81
  4. Step 4: Simplify right side
    8,916.09x = 53,325,663.85
  5. Step 5: Solve for x
    x = 53,325,663.85/8,916.09
  6. Step 6: Final answer
    x = 5,980.84

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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.