Home / 11,581.80-15,976.08-7,603.08

Finding the Fourth Proportional to 11,581.80, 15,976.08 and 7,603.08

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Solution

The fourth proportional to 11,581.80, 15,976.08 and 7,603.08 is: 10,487.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.80 : 15,976.08 = 7,603.08 : x
  2. Step 2: Convert to fraction form
    11,581.80/15,976.08 = 7,603.08/x
  3. Step 3: Cross multiply
    11,581.80x = 15,976.08 × 7,603.08
  4. Step 4: Simplify right side
    11,581.80x = 121,467,414.33
  5. Step 5: Solve for x
    x = 121,467,414.33/11,581.80
  6. Step 6: Final answer
    x = 10,487.78

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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.