Home / 10,865.92-16,286.58-7,491.10

Finding the Fourth Proportional to 10,865.92, 16,286.58 and 7,491.10

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Solution

The fourth proportional to 10,865.92, 16,286.58 and 7,491.10 is: 11,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.92 : 16,286.58 = 7,491.10 : x
  2. Step 2: Convert to fraction form
    10,865.92/16,286.58 = 7,491.10/x
  3. Step 3: Cross multiply
    10,865.92x = 16,286.58 × 7,491.10
  4. Step 4: Simplify right side
    10,865.92x = 122,004,399.44
  5. Step 5: Solve for x
    x = 122,004,399.44/10,865.92
  6. Step 6: Final answer
    x = 11,228.17

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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.