Home / 11,871.50-17,809.20-4,476.60

Finding the Fourth Proportional to 11,871.50, 17,809.20 and 4,476.60

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Solution

The fourth proportional to 11,871.50, 17,809.20 and 4,476.60 is: 6,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,871.50 : 17,809.20 = 4,476.60 : x
  2. Step 2: Convert to fraction form
    11,871.50/17,809.20 = 4,476.60/x
  3. Step 3: Cross multiply
    11,871.50x = 17,809.20 × 4,476.60
  4. Step 4: Simplify right side
    11,871.50x = 79,724,664.72
  5. Step 5: Solve for x
    x = 79,724,664.72/11,871.50
  6. Step 6: Final answer
    x = 6,715.64

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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.