Home / 10,947.10-16,396.35-9,489.10

Finding the Fourth Proportional to 10,947.10, 16,396.35 and 9,489.10

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Solution

The fourth proportional to 10,947.10, 16,396.35 and 9,489.10 is: 14,212.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.10 : 16,396.35 = 9,489.10 : x
  2. Step 2: Convert to fraction form
    10,947.10/16,396.35 = 9,489.10/x
  3. Step 3: Cross multiply
    10,947.10x = 16,396.35 × 9,489.10
  4. Step 4: Simplify right side
    10,947.10x = 155,586,604.79
  5. Step 5: Solve for x
    x = 155,586,604.79/10,947.10
  6. Step 6: Final answer
    x = 14,212.59

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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.