Home / 26,409.45-39,616.26-7,689.78

Finding the Fourth Proportional to 26,409.45, 39,616.26 and 7,689.78

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Solution

The fourth proportional to 26,409.45, 39,616.26 and 7,689.78 is: 11,535.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,409.45 : 39,616.26 = 7,689.78 : x
  2. Step 2: Convert to fraction form
    26,409.45/39,616.26 = 7,689.78/x
  3. Step 3: Cross multiply
    26,409.45x = 39,616.26 × 7,689.78
  4. Step 4: Simplify right side
    26,409.45x = 304,640,323.82
  5. Step 5: Solve for x
    x = 304,640,323.82/26,409.45
  6. Step 6: Final answer
    x = 11,535.28

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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.