Home / 14,007.20-19,329.82-7,719.58

Finding the Fourth Proportional to 14,007.20, 19,329.82 and 7,719.58

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Solution

The fourth proportional to 14,007.20, 19,329.82 and 7,719.58 is: 10,652.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.20 : 19,329.82 = 7,719.58 : x
  2. Step 2: Convert to fraction form
    14,007.20/19,329.82 = 7,719.58/x
  3. Step 3: Cross multiply
    14,007.20x = 19,329.82 × 7,719.58
  4. Step 4: Simplify right side
    14,007.20x = 149,218,091.88
  5. Step 5: Solve for x
    x = 149,218,091.88/14,007.20
  6. Step 6: Final answer
    x = 10,652.96

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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.