Home / 18,581.75-25,634.45-11,028.40

Finding the Fourth Proportional to 18,581.75, 25,634.45 and 11,028.40

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Solution

The fourth proportional to 18,581.75, 25,634.45 and 11,028.40 is: 15,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.75 : 25,634.45 = 11,028.40 : x
  2. Step 2: Convert to fraction form
    18,581.75/25,634.45 = 11,028.40/x
  3. Step 3: Cross multiply
    18,581.75x = 25,634.45 × 11,028.40
  4. Step 4: Simplify right side
    18,581.75x = 282,707,045.04
  5. Step 5: Solve for x
    x = 282,707,045.04/18,581.75
  6. Step 6: Final answer
    x = 15,214.23

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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.