Home / 13,322.34-19,983.60-6,375.78

Finding the Fourth Proportional to 13,322.34, 19,983.60 and 6,375.78

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Solution

The fourth proportional to 13,322.34, 19,983.60 and 6,375.78 is: 9,563.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.34 : 19,983.60 = 6,375.78 : x
  2. Step 2: Convert to fraction form
    13,322.34/19,983.60 = 6,375.78/x
  3. Step 3: Cross multiply
    13,322.34x = 19,983.60 × 6,375.78
  4. Step 4: Simplify right side
    13,322.34x = 127,411,037.21
  5. Step 5: Solve for x
    x = 127,411,037.21/13,322.34
  6. Step 6: Final answer
    x = 9,563.71

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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.