Home / 18,535.75-25,578.31-10,982.77

Finding the Fourth Proportional to 18,535.75, 25,578.31 and 10,982.77

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Solution

The fourth proportional to 18,535.75, 25,578.31 and 10,982.77 is: 15,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.75 : 25,578.31 = 10,982.77 : x
  2. Step 2: Convert to fraction form
    18,535.75/25,578.31 = 10,982.77/x
  3. Step 3: Cross multiply
    18,535.75x = 25,578.31 × 10,982.77
  4. Step 4: Simplify right side
    18,535.75x = 280,920,695.72
  5. Step 5: Solve for x
    x = 280,920,695.72/18,535.75
  6. Step 6: Final answer
    x = 15,155.62

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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.