Home / 10,221.05-15,320.55-4,944.91

Finding the Fourth Proportional to 10,221.05, 15,320.55 and 4,944.91

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Solution

The fourth proportional to 10,221.05, 15,320.55 and 4,944.91 is: 7,412.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.05 : 15,320.55 = 4,944.91 : x
  2. Step 2: Convert to fraction form
    10,221.05/15,320.55 = 4,944.91/x
  3. Step 3: Cross multiply
    10,221.05x = 15,320.55 × 4,944.91
  4. Step 4: Simplify right side
    10,221.05x = 75,758,740.90
  5. Step 5: Solve for x
    x = 75,758,740.90/10,221.05
  6. Step 6: Final answer
    x = 7,412.03

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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.