Home / 9,639.30-14,459-3,399.42

Finding the Fourth Proportional to 9,639.30, 14,459 and 3,399.42

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Solution

The fourth proportional to 9,639.30, 14,459 and 3,399.42 is: 5,099.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.30 : 14,459 = 3,399.42 : x
  2. Step 2: Convert to fraction form
    9,639.30/14,459 = 3,399.42/x
  3. Step 3: Cross multiply
    9,639.30x = 14,459 × 3,399.42
  4. Step 4: Simplify right side
    9,639.30x = 49,152,213.78
  5. Step 5: Solve for x
    x = 49,152,213.78/9,639.30
  6. Step 6: Final answer
    x = 5,099.15

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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.