Home / 16,919.62-25,378.80-4,439.53

Finding the Fourth Proportional to 16,919.62, 25,378.80 and 4,439.53

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Solution

The fourth proportional to 16,919.62, 25,378.80 and 4,439.53 is: 6,659.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.62 : 25,378.80 = 4,439.53 : x
  2. Step 2: Convert to fraction form
    16,919.62/25,378.80 = 4,439.53/x
  3. Step 3: Cross multiply
    16,919.62x = 25,378.80 × 4,439.53
  4. Step 4: Simplify right side
    16,919.62x = 112,669,943.96
  5. Step 5: Solve for x
    x = 112,669,943.96/16,919.62
  6. Step 6: Final answer
    x = 6,659.13

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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.