Home / 10,174.40-15,262.44-2,778.92

Finding the Fourth Proportional to 10,174.40, 15,262.44 and 2,778.92

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Solution

The fourth proportional to 10,174.40, 15,262.44 and 2,778.92 is: 4,168.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,174.40 : 15,262.44 = 2,778.92 : x
  2. Step 2: Convert to fraction form
    10,174.40/15,262.44 = 2,778.92/x
  3. Step 3: Cross multiply
    10,174.40x = 15,262.44 × 2,778.92
  4. Step 4: Simplify right side
    10,174.40x = 42,413,099.76
  5. Step 5: Solve for x
    x = 42,413,099.76/10,174.40
  6. Step 6: Final answer
    x = 4,168.61

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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.