Home / 10,361.30-15,554.97-8,306.91

Finding the Fourth Proportional to 10,361.30, 15,554.97 and 8,306.91

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Solution

The fourth proportional to 10,361.30, 15,554.97 and 8,306.91 is: 12,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361.30 : 15,554.97 = 8,306.91 : x
  2. Step 2: Convert to fraction form
    10,361.30/15,554.97 = 8,306.91/x
  3. Step 3: Cross multiply
    10,361.30x = 15,554.97 × 8,306.91
  4. Step 4: Simplify right side
    10,361.30x = 129,213,735.84
  5. Step 5: Solve for x
    x = 129,213,735.84/10,361.30
  6. Step 6: Final answer
    x = 12,470.81

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1.5x scale

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.