Home / 11,281.85-16,918.10-4,260.66

Finding the Fourth Proportional to 11,281.85, 16,918.10 and 4,260.66

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Solution

The fourth proportional to 11,281.85, 16,918.10 and 4,260.66 is: 6,389.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.85 : 16,918.10 = 4,260.66 : x
  2. Step 2: Convert to fraction form
    11,281.85/16,918.10 = 4,260.66/x
  3. Step 3: Cross multiply
    11,281.85x = 16,918.10 × 4,260.66
  4. Step 4: Simplify right side
    11,281.85x = 72,082,250.64
  5. Step 5: Solve for x
    x = 72,082,250.64/11,281.85
  6. Step 6: Final answer
    x = 6,389.23

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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.