Home / 11,139.16-16,697.76-6,211.12

Finding the Fourth Proportional to 11,139.16, 16,697.76 and 6,211.12

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Solution

The fourth proportional to 11,139.16, 16,697.76 and 6,211.12 is: 9,310.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.16 : 16,697.76 = 6,211.12 : x
  2. Step 2: Convert to fraction form
    11,139.16/16,697.76 = 6,211.12/x
  3. Step 3: Cross multiply
    11,139.16x = 16,697.76 × 6,211.12
  4. Step 4: Simplify right side
    11,139.16x = 103,711,791.09
  5. Step 5: Solve for x
    x = 103,711,791.09/11,139.16
  6. Step 6: Final answer
    x = 9,310.56

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1.5x scale

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.