Home / 10,909.46-16,372.33-4,247.01

Finding the Fourth Proportional to 10,909.46, 16,372.33 and 4,247.01

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Solution

The fourth proportional to 10,909.46, 16,372.33 and 4,247.01 is: 6,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.46 : 16,372.33 = 4,247.01 : x
  2. Step 2: Convert to fraction form
    10,909.46/16,372.33 = 4,247.01/x
  3. Step 3: Cross multiply
    10,909.46x = 16,372.33 × 4,247.01
  4. Step 4: Simplify right side
    10,909.46x = 69,533,438.62
  5. Step 5: Solve for x
    x = 69,533,438.62/10,909.46
  6. Step 6: Final answer
    x = 6,373.68

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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.