Home / 13,405.42-20,107.31-6,007.89

Finding the Fourth Proportional to 13,405.42, 20,107.31 and 6,007.89

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Solution

The fourth proportional to 13,405.42, 20,107.31 and 6,007.89 is: 9,011.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.42 : 20,107.31 = 6,007.89 : x
  2. Step 2: Convert to fraction form
    13,405.42/20,107.31 = 6,007.89/x
  3. Step 3: Cross multiply
    13,405.42x = 20,107.31 × 6,007.89
  4. Step 4: Simplify right side
    13,405.42x = 120,802,476.64
  5. Step 5: Solve for x
    x = 120,802,476.64/13,405.42
  6. Step 6: Final answer
    x = 9,011.47

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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.