Home / 14,187.12-21,280.29-4,326

Finding the Fourth Proportional to 14,187.12, 21,280.29 and 4,326

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Solution

The fourth proportional to 14,187.12, 21,280.29 and 4,326 is: 6,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.12 : 21,280.29 = 4,326 : x
  2. Step 2: Convert to fraction form
    14,187.12/21,280.29 = 4,326/x
  3. Step 3: Cross multiply
    14,187.12x = 21,280.29 × 4,326
  4. Step 4: Simplify right side
    14,187.12x = 92,058,534.54
  5. Step 5: Solve for x
    x = 92,058,534.54/14,187.12
  6. Step 6: Final answer
    x = 6,488.88

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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.