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Finding the Fourth Proportional to 13,537.92, 20,303.04 and 5,328

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Solution

The fourth proportional to 13,537.92, 20,303.04 and 5,328 is: 7,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.92 : 20,303.04 = 5,328 : x
  2. Step 2: Convert to fraction form
    13,537.92/20,303.04 = 5,328/x
  3. Step 3: Cross multiply
    13,537.92x = 20,303.04 × 5,328
  4. Step 4: Simplify right side
    13,537.92x = 108,174,597.12
  5. Step 5: Solve for x
    x = 108,174,597.12/13,537.92
  6. Step 6: Final answer
    x = 7,990.49

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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.