Home / 10,381.91-14,326.49-5,905.64

Finding the Fourth Proportional to 10,381.91, 14,326.49 and 5,905.64

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Solution

The fourth proportional to 10,381.91, 14,326.49 and 5,905.64 is: 8,149.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.91 : 14,326.49 = 5,905.64 : x
  2. Step 2: Convert to fraction form
    10,381.91/14,326.49 = 5,905.64/x
  3. Step 3: Cross multiply
    10,381.91x = 14,326.49 × 5,905.64
  4. Step 4: Simplify right side
    10,381.91x = 84,607,142.98
  5. Step 5: Solve for x
    x = 84,607,142.98/10,381.91
  6. Step 6: Final answer
    x = 8,149.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.