Home / 11,153.34-16,731.18-4,227.84

Finding the Fourth Proportional to 11,153.34, 16,731.18 and 4,227.84

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Solution

The fourth proportional to 11,153.34, 16,731.18 and 4,227.84 is: 6,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.34 : 16,731.18 = 4,227.84 : x
  2. Step 2: Convert to fraction form
    11,153.34/16,731.18 = 4,227.84/x
  3. Step 3: Cross multiply
    11,153.34x = 16,731.18 × 4,227.84
  4. Step 4: Simplify right side
    11,153.34x = 70,736,752.05
  5. Step 5: Solve for x
    x = 70,736,752.05/11,153.34
  6. Step 6: Final answer
    x = 6,342.20

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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.