Home / 18,581.31-25,640.49-11,026.34

Finding the Fourth Proportional to 18,581.31, 25,640.49 and 11,026.34

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Solution

The fourth proportional to 18,581.31, 25,640.49 and 11,026.34 is: 15,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.31 : 25,640.49 = 11,026.34 : x
  2. Step 2: Convert to fraction form
    18,581.31/25,640.49 = 11,026.34/x
  3. Step 3: Cross multiply
    18,581.31x = 25,640.49 × 11,026.34
  4. Step 4: Simplify right side
    18,581.31x = 282,720,632.30
  5. Step 5: Solve for x
    x = 282,720,632.30/18,581.31
  6. Step 6: Final answer
    x = 15,215.32

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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.