Home / 14,305.25-21,459.36-3,917

Finding the Fourth Proportional to 14,305.25, 21,459.36 and 3,917

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Solution

The fourth proportional to 14,305.25, 21,459.36 and 3,917 is: 5,875.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,305.25 : 21,459.36 = 3,917 : x
  2. Step 2: Convert to fraction form
    14,305.25/21,459.36 = 3,917/x
  3. Step 3: Cross multiply
    14,305.25x = 21,459.36 × 3,917
  4. Step 4: Simplify right side
    14,305.25x = 84,056,313.12
  5. Step 5: Solve for x
    x = 84,056,313.12/14,305.25
  6. Step 6: Final answer
    x = 5,875.91

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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.