Home / 15,286.86-21,096.72-11,503.22

Finding the Fourth Proportional to 15,286.86, 21,096.72 and 11,503.22

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Solution

The fourth proportional to 15,286.86, 21,096.72 and 11,503.22 is: 15,875.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.86 : 21,096.72 = 11,503.22 : x
  2. Step 2: Convert to fraction form
    15,286.86/21,096.72 = 11,503.22/x
  3. Step 3: Cross multiply
    15,286.86x = 21,096.72 × 11,503.22
  4. Step 4: Simplify right side
    15,286.86x = 242,680,105.95
  5. Step 5: Solve for x
    x = 242,680,105.95/15,286.86
  6. Step 6: Final answer
    x = 15,875.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.