Home / 10,871.85-16,304.50-4,207.17

Finding the Fourth Proportional to 10,871.85, 16,304.50 and 4,207.17

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Solution

The fourth proportional to 10,871.85, 16,304.50 and 4,207.17 is: 6,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.85 : 16,304.50 = 4,207.17 : x
  2. Step 2: Convert to fraction form
    10,871.85/16,304.50 = 4,207.17/x
  3. Step 3: Cross multiply
    10,871.85x = 16,304.50 × 4,207.17
  4. Step 4: Simplify right side
    10,871.85x = 68,595,803.27
  5. Step 5: Solve for x
    x = 68,595,803.27/10,871.85
  6. Step 6: Final answer
    x = 6,309.49

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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.