Home / 14,286.30-21,429.45-11,005.80

Finding the Fourth Proportional to 14,286.30, 21,429.45 and 11,005.80

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Solution

The fourth proportional to 14,286.30, 21,429.45 and 11,005.80 is: 16,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.30 : 21,429.45 = 11,005.80 : x
  2. Step 2: Convert to fraction form
    14,286.30/21,429.45 = 11,005.80/x
  3. Step 3: Cross multiply
    14,286.30x = 21,429.45 × 11,005.80
  4. Step 4: Simplify right side
    14,286.30x = 235,848,240.81
  5. Step 5: Solve for x
    x = 235,848,240.81/14,286.30
  6. Step 6: Final answer
    x = 16,508.70

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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.