Home / 12,148.70-18,208.42-5,126

Finding the Fourth Proportional to 12,148.70, 18,208.42 and 5,126

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Solution

The fourth proportional to 12,148.70, 18,208.42 and 5,126 is: 7,682.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.70 : 18,208.42 = 5,126 : x
  2. Step 2: Convert to fraction form
    12,148.70/18,208.42 = 5,126/x
  3. Step 3: Cross multiply
    12,148.70x = 18,208.42 × 5,126
  4. Step 4: Simplify right side
    12,148.70x = 93,336,360.92
  5. Step 5: Solve for x
    x = 93,336,360.92/12,148.70
  6. Step 6: Final answer
    x = 7,682.83

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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.