Home / 10,941.40-16,420.20-4,372.30

Finding the Fourth Proportional to 10,941.40, 16,420.20 and 4,372.30

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Solution

The fourth proportional to 10,941.40, 16,420.20 and 4,372.30 is: 6,561.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,941.40 : 16,420.20 = 4,372.30 : x
  2. Step 2: Convert to fraction form
    10,941.40/16,420.20 = 4,372.30/x
  3. Step 3: Cross multiply
    10,941.40x = 16,420.20 × 4,372.30
  4. Step 4: Simplify right side
    10,941.40x = 71,794,040.46
  5. Step 5: Solve for x
    x = 71,794,040.46/10,941.40
  6. Step 6: Final answer
    x = 6,561.69

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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.