Home / 11,439.87-17,127.45-7,269.54

Finding the Fourth Proportional to 11,439.87, 17,127.45 and 7,269.54

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Solution

The fourth proportional to 11,439.87, 17,127.45 and 7,269.54 is: 10,883.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.87 : 17,127.45 = 7,269.54 : x
  2. Step 2: Convert to fraction form
    11,439.87/17,127.45 = 7,269.54/x
  3. Step 3: Cross multiply
    11,439.87x = 17,127.45 × 7,269.54
  4. Step 4: Simplify right side
    11,439.87x = 124,508,682.87
  5. Step 5: Solve for x
    x = 124,508,682.87/11,439.87
  6. Step 6: Final answer
    x = 10,883.75

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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.