Home / 8,953.92-13,428.85-3,405.29

Finding the Fourth Proportional to 8,953.92, 13,428.85 and 3,405.29

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Solution

The fourth proportional to 8,953.92, 13,428.85 and 3,405.29 is: 5,107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.92 : 13,428.85 = 3,405.29 : x
  2. Step 2: Convert to fraction form
    8,953.92/13,428.85 = 3,405.29/x
  3. Step 3: Cross multiply
    8,953.92x = 13,428.85 × 3,405.29
  4. Step 4: Simplify right side
    8,953.92x = 45,729,128.62
  5. Step 5: Solve for x
    x = 45,729,128.62/8,953.92
  6. Step 6: Final answer
    x = 5,107.16

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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.