Home / 16,919.84-25,371.87-6,381.74

Finding the Fourth Proportional to 16,919.84, 25,371.87 and 6,381.74

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Solution

The fourth proportional to 16,919.84, 25,371.87 and 6,381.74 is: 9,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.84 : 25,371.87 = 6,381.74 : x
  2. Step 2: Convert to fraction form
    16,919.84/25,371.87 = 6,381.74/x
  3. Step 3: Cross multiply
    16,919.84x = 25,371.87 × 6,381.74
  4. Step 4: Simplify right side
    16,919.84x = 161,916,717.15
  5. Step 5: Solve for x
    x = 161,916,717.15/16,919.84
  6. Step 6: Final answer
    x = 9,569.64

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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.