Home / 13,286.56-19,930.76-4,401.88

Finding the Fourth Proportional to 13,286.56, 19,930.76 and 4,401.88

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Solution

The fourth proportional to 13,286.56, 19,930.76 and 4,401.88 is: 6,603.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.56 : 19,930.76 = 4,401.88 : x
  2. Step 2: Convert to fraction form
    13,286.56/19,930.76 = 4,401.88/x
  3. Step 3: Cross multiply
    13,286.56x = 19,930.76 × 4,401.88
  4. Step 4: Simplify right side
    13,286.56x = 87,732,813.83
  5. Step 5: Solve for x
    x = 87,732,813.83/13,286.56
  6. Step 6: Final answer
    x = 6,603.12

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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.