Home / 10,605.93-15,905.14-3,107.42

Finding the Fourth Proportional to 10,605.93, 15,905.14 and 3,107.42

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Solution

The fourth proportional to 10,605.93, 15,905.14 and 3,107.42 is: 4,660.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,605.93 : 15,905.14 = 3,107.42 : x
  2. Step 2: Convert to fraction form
    10,605.93/15,905.14 = 3,107.42/x
  3. Step 3: Cross multiply
    10,605.93x = 15,905.14 × 3,107.42
  4. Step 4: Simplify right side
    10,605.93x = 49,423,950.14
  5. Step 5: Solve for x
    x = 49,423,950.14/10,605.93
  6. Step 6: Final answer
    x = 4,660.03

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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.