Home / 9,912.99-14,869.55-3,909.67

Finding the Fourth Proportional to 9,912.99, 14,869.55 and 3,909.67

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Solution

The fourth proportional to 9,912.99, 14,869.55 and 3,909.67 is: 5,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.99 : 14,869.55 = 3,909.67 : x
  2. Step 2: Convert to fraction form
    9,912.99/14,869.55 = 3,909.67/x
  3. Step 3: Cross multiply
    9,912.99x = 14,869.55 × 3,909.67
  4. Step 4: Simplify right side
    9,912.99x = 58,135,033.55
  5. Step 5: Solve for x
    x = 58,135,033.55/9,912.99
  6. Step 6: Final answer
    x = 5,864.53

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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.