Home / 14,431.40-21,634.04-5,663.96

Finding the Fourth Proportional to 14,431.40, 21,634.04 and 5,663.96

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Solution

The fourth proportional to 14,431.40, 21,634.04 and 5,663.96 is: 8,490.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,431.40 : 21,634.04 = 5,663.96 : x
  2. Step 2: Convert to fraction form
    14,431.40/21,634.04 = 5,663.96/x
  3. Step 3: Cross multiply
    14,431.40x = 21,634.04 × 5,663.96
  4. Step 4: Simplify right side
    14,431.40x = 122,534,337.20
  5. Step 5: Solve for x
    x = 122,534,337.20/14,431.40
  6. Step 6: Final answer
    x = 8,490.81

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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.