Home / 9,890.78-14,835.42-3,967.45

Finding the Fourth Proportional to 9,890.78, 14,835.42 and 3,967.45

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Solution

The fourth proportional to 9,890.78, 14,835.42 and 3,967.45 is: 5,950.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.78 : 14,835.42 = 3,967.45 : x
  2. Step 2: Convert to fraction form
    9,890.78/14,835.42 = 3,967.45/x
  3. Step 3: Cross multiply
    9,890.78x = 14,835.42 × 3,967.45
  4. Step 4: Simplify right side
    9,890.78x = 58,858,749.99
  5. Step 5: Solve for x
    x = 58,858,749.99/9,890.78
  6. Step 6: Final answer
    x = 5,950.87

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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.