Home / 11,929.68-17,885.10-7,537.88

Finding the Fourth Proportional to 11,929.68, 17,885.10 and 7,537.88

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Solution

The fourth proportional to 11,929.68, 17,885.10 and 7,537.88 is: 11,300.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.68 : 17,885.10 = 7,537.88 : x
  2. Step 2: Convert to fraction form
    11,929.68/17,885.10 = 7,537.88/x
  3. Step 3: Cross multiply
    11,929.68x = 17,885.10 × 7,537.88
  4. Step 4: Simplify right side
    11,929.68x = 134,815,737.59
  5. Step 5: Solve for x
    x = 134,815,737.59/11,929.68
  6. Step 6: Final answer
    x = 11,300.87

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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.