Home / 14,439.96-21,647.28-6,939.77

Finding the Fourth Proportional to 14,439.96, 21,647.28 and 6,939.77

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Solution

The fourth proportional to 14,439.96, 21,647.28 and 6,939.77 is: 10,403.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.96 : 21,647.28 = 6,939.77 : x
  2. Step 2: Convert to fraction form
    14,439.96/21,647.28 = 6,939.77/x
  3. Step 3: Cross multiply
    14,439.96x = 21,647.28 × 6,939.77
  4. Step 4: Simplify right side
    14,439.96x = 150,227,036.09
  5. Step 5: Solve for x
    x = 150,227,036.09/14,439.96
  6. Step 6: Final answer
    x = 10,403.56

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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.