Home / 13,255.92-18,289.52-8,542.94

Finding the Fourth Proportional to 13,255.92, 18,289.52 and 8,542.94

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Solution

The fourth proportional to 13,255.92, 18,289.52 and 8,542.94 is: 11,786.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.92 : 18,289.52 = 8,542.94 : x
  2. Step 2: Convert to fraction form
    13,255.92/18,289.52 = 8,542.94/x
  3. Step 3: Cross multiply
    13,255.92x = 18,289.52 × 8,542.94
  4. Step 4: Simplify right side
    13,255.92x = 156,246,271.99
  5. Step 5: Solve for x
    x = 156,246,271.99/13,255.92
  6. Step 6: Final answer
    x = 11,786.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.