Home / 11,096.79-15,306.53-8,438.37

Finding the Fourth Proportional to 11,096.79, 15,306.53 and 8,438.37

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Solution

The fourth proportional to 11,096.79, 15,306.53 and 8,438.37 is: 11,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,096.79 : 15,306.53 = 8,438.37 : x
  2. Step 2: Convert to fraction form
    11,096.79/15,306.53 = 8,438.37/x
  3. Step 3: Cross multiply
    11,096.79x = 15,306.53 × 8,438.37
  4. Step 4: Simplify right side
    11,096.79x = 129,162,163.56
  5. Step 5: Solve for x
    x = 129,162,163.56/11,096.79
  6. Step 6: Final answer
    x = 11,639.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.