Home / 10,126.74-15,179.70-3,885.09

Finding the Fourth Proportional to 10,126.74, 15,179.70 and 3,885.09

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Solution

The fourth proportional to 10,126.74, 15,179.70 and 3,885.09 is: 5,823.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.74 : 15,179.70 = 3,885.09 : x
  2. Step 2: Convert to fraction form
    10,126.74/15,179.70 = 3,885.09/x
  3. Step 3: Cross multiply
    10,126.74x = 15,179.70 × 3,885.09
  4. Step 4: Simplify right side
    10,126.74x = 58,974,500.67
  5. Step 5: Solve for x
    x = 58,974,500.67/10,126.74
  6. Step 6: Final answer
    x = 5,823.64

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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.