Home / 13,103.92-18,101.10-10,469.80

Finding the Fourth Proportional to 13,103.92, 18,101.10 and 10,469.80

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Solution

The fourth proportional to 13,103.92, 18,101.10 and 10,469.80 is: 14,462.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.92 : 18,101.10 = 10,469.80 : x
  2. Step 2: Convert to fraction form
    13,103.92/18,101.10 = 10,469.80/x
  3. Step 3: Cross multiply
    13,103.92x = 18,101.10 × 10,469.80
  4. Step 4: Simplify right side
    13,103.92x = 189,514,896.78
  5. Step 5: Solve for x
    x = 189,514,896.78/13,103.92
  6. Step 6: Final answer
    x = 14,462.46

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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.