Home / 16,878.30-25,317.67-5,191.51

Finding the Fourth Proportional to 16,878.30, 25,317.67 and 5,191.51

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Solution

The fourth proportional to 16,878.30, 25,317.67 and 5,191.51 is: 7,787.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.30 : 25,317.67 = 5,191.51 : x
  2. Step 2: Convert to fraction form
    16,878.30/25,317.67 = 5,191.51/x
  3. Step 3: Cross multiply
    16,878.30x = 25,317.67 × 5,191.51
  4. Step 4: Simplify right side
    16,878.30x = 131,436,936.98
  5. Step 5: Solve for x
    x = 131,436,936.98/16,878.30
  6. Step 6: Final answer
    x = 7,787.33

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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.