Home / 10,224.15-15,329.04-3,978.89

Finding the Fourth Proportional to 10,224.15, 15,329.04 and 3,978.89

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Solution

The fourth proportional to 10,224.15, 15,329.04 and 3,978.89 is: 5,965.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,224.15 : 15,329.04 = 3,978.89 : x
  2. Step 2: Convert to fraction form
    10,224.15/15,329.04 = 3,978.89/x
  3. Step 3: Cross multiply
    10,224.15x = 15,329.04 × 3,978.89
  4. Step 4: Simplify right side
    10,224.15x = 60,992,529.88
  5. Step 5: Solve for x
    x = 60,992,529.88/10,224.15
  6. Step 6: Final answer
    x = 5,965.54

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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.