Home / 10,384.20-15,584.58-5,456.73

Finding the Fourth Proportional to 10,384.20, 15,584.58 and 5,456.73

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Solution

The fourth proportional to 10,384.20, 15,584.58 and 5,456.73 is: 8,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,384.20 : 15,584.58 = 5,456.73 : x
  2. Step 2: Convert to fraction form
    10,384.20/15,584.58 = 5,456.73/x
  3. Step 3: Cross multiply
    10,384.20x = 15,584.58 × 5,456.73
  4. Step 4: Simplify right side
    10,384.20x = 85,040,845.22
  5. Step 5: Solve for x
    x = 85,040,845.22/10,384.20
  6. Step 6: Final answer
    x = 8,189.45

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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.