Home / 13,499.64-20,247.93-3,639.87

Finding the Fourth Proportional to 13,499.64, 20,247.93 and 3,639.87

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Solution

The fourth proportional to 13,499.64, 20,247.93 and 3,639.87 is: 5,459.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.64 : 20,247.93 = 3,639.87 : x
  2. Step 2: Convert to fraction form
    13,499.64/20,247.93 = 3,639.87/x
  3. Step 3: Cross multiply
    13,499.64x = 20,247.93 × 3,639.87
  4. Step 4: Simplify right side
    13,499.64x = 73,699,832.97
  5. Step 5: Solve for x
    x = 73,699,832.97/13,499.64
  6. Step 6: Final answer
    x = 5,459.39

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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.