Home / 10,211.84-15,317.76-3,286.88

Finding the Fourth Proportional to 10,211.84, 15,317.76 and 3,286.88

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Solution

The fourth proportional to 10,211.84, 15,317.76 and 3,286.88 is: 4,930.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.84 : 15,317.76 = 3,286.88 : x
  2. Step 2: Convert to fraction form
    10,211.84/15,317.76 = 3,286.88/x
  3. Step 3: Cross multiply
    10,211.84x = 15,317.76 × 3,286.88
  4. Step 4: Simplify right side
    10,211.84x = 50,347,638.99
  5. Step 5: Solve for x
    x = 50,347,638.99/10,211.84
  6. Step 6: Final answer
    x = 4,930.32

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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.