Home / 14,748.92-20,379.40-11,789.16

Finding the Fourth Proportional to 14,748.92, 20,379.40 and 11,789.16

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Solution

The fourth proportional to 14,748.92, 20,379.40 and 11,789.16 is: 16,289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,748.92 : 20,379.40 = 11,789.16 : x
  2. Step 2: Convert to fraction form
    14,748.92/20,379.40 = 11,789.16/x
  3. Step 3: Cross multiply
    14,748.92x = 20,379.40 × 11,789.16
  4. Step 4: Simplify right side
    14,748.92x = 240,256,007.30
  5. Step 5: Solve for x
    x = 240,256,007.30/14,748.92
  6. Step 6: Final answer
    x = 16,289.74

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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.