Home / 11,909.50-17,862.48-3,145.03

Finding the Fourth Proportional to 11,909.50, 17,862.48 and 3,145.03

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Solution

The fourth proportional to 11,909.50, 17,862.48 and 3,145.03 is: 4,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.50 : 17,862.48 = 3,145.03 : x
  2. Step 2: Convert to fraction form
    11,909.50/17,862.48 = 3,145.03/x
  3. Step 3: Cross multiply
    11,909.50x = 17,862.48 × 3,145.03
  4. Step 4: Simplify right side
    11,909.50x = 56,178,035.47
  5. Step 5: Solve for x
    x = 56,178,035.47/11,909.50
  6. Step 6: Final answer
    x = 4,717.08

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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.