Home / 11,811.28-17,664.04-10,503.12

Finding the Fourth Proportional to 11,811.28, 17,664.04 and 10,503.12

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Solution

The fourth proportional to 11,811.28, 17,664.04 and 10,503.12 is: 15,707.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.28 : 17,664.04 = 10,503.12 : x
  2. Step 2: Convert to fraction form
    11,811.28/17,664.04 = 10,503.12/x
  3. Step 3: Cross multiply
    11,811.28x = 17,664.04 × 10,503.12
  4. Step 4: Simplify right side
    11,811.28x = 185,527,531.80
  5. Step 5: Solve for x
    x = 185,527,531.80/11,811.28
  6. Step 6: Final answer
    x = 15,707.66

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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.