Home / 10,945.05-16,421.21-3,549.75

Finding the Fourth Proportional to 10,945.05, 16,421.21 and 3,549.75

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Solution

The fourth proportional to 10,945.05, 16,421.21 and 3,549.75 is: 5,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.05 : 16,421.21 = 3,549.75 : x
  2. Step 2: Convert to fraction form
    10,945.05/16,421.21 = 3,549.75/x
  3. Step 3: Cross multiply
    10,945.05x = 16,421.21 × 3,549.75
  4. Step 4: Simplify right side
    10,945.05x = 58,291,190.20
  5. Step 5: Solve for x
    x = 58,291,190.20/10,945.05
  6. Step 6: Final answer
    x = 5,325.80

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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.