Home / 11,931.88-17,893.62-4,909.84

Finding the Fourth Proportional to 11,931.88, 17,893.62 and 4,909.84

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Solution

The fourth proportional to 11,931.88, 17,893.62 and 4,909.84 is: 7,363.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.88 : 17,893.62 = 4,909.84 : x
  2. Step 2: Convert to fraction form
    11,931.88/17,893.62 = 4,909.84/x
  3. Step 3: Cross multiply
    11,931.88x = 17,893.62 × 4,909.84
  4. Step 4: Simplify right side
    11,931.88x = 87,854,811.22
  5. Step 5: Solve for x
    x = 87,854,811.22/11,931.88
  6. Step 6: Final answer
    x = 7,363.03

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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.