Home / 14,208.21-21,305.03-5,319.88

Finding the Fourth Proportional to 14,208.21, 21,305.03 and 5,319.88

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Solution

The fourth proportional to 14,208.21, 21,305.03 and 5,319.88 is: 7,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.21 : 21,305.03 = 5,319.88 : x
  2. Step 2: Convert to fraction form
    14,208.21/21,305.03 = 5,319.88/x
  3. Step 3: Cross multiply
    14,208.21x = 21,305.03 × 5,319.88
  4. Step 4: Simplify right side
    14,208.21x = 113,340,123.13
  5. Step 5: Solve for x
    x = 113,340,123.13/14,208.21
  6. Step 6: Final answer
    x = 7,977.09

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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.