Home / 16,908.40-25,355.28-13,015.54

Finding the Fourth Proportional to 16,908.40, 25,355.28 and 13,015.54

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Solution

The fourth proportional to 16,908.40, 25,355.28 and 13,015.54 is: 19,517.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,908.40 : 25,355.28 = 13,015.54 : x
  2. Step 2: Convert to fraction form
    16,908.40/25,355.28 = 13,015.54/x
  3. Step 3: Cross multiply
    16,908.40x = 25,355.28 × 13,015.54
  4. Step 4: Simplify right side
    16,908.40x = 330,012,661.05
  5. Step 5: Solve for x
    x = 330,012,661.05/16,908.40
  6. Step 6: Final answer
    x = 19,517.68

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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.