Home / 12,669.92-18,979.68-11,587.04

Finding the Fourth Proportional to 12,669.92, 18,979.68 and 11,587.04

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Solution

The fourth proportional to 12,669.92, 18,979.68 and 11,587.04 is: 17,357.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.92 : 18,979.68 = 11,587.04 : x
  2. Step 2: Convert to fraction form
    12,669.92/18,979.68 = 11,587.04/x
  3. Step 3: Cross multiply
    12,669.92x = 18,979.68 × 11,587.04
  4. Step 4: Simplify right side
    12,669.92x = 219,918,311.35
  5. Step 5: Solve for x
    x = 219,918,311.35/12,669.92
  6. Step 6: Final answer
    x = 17,357.51

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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.