Home / 18,766.80-25,886.16-14,786.64

Finding the Fourth Proportional to 18,766.80, 25,886.16 and 14,786.64

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Solution

The fourth proportional to 18,766.80, 25,886.16 and 14,786.64 is: 20,396.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.80 : 25,886.16 = 14,786.64 : x
  2. Step 2: Convert to fraction form
    18,766.80/25,886.16 = 14,786.64/x
  3. Step 3: Cross multiply
    18,766.80x = 25,886.16 × 14,786.64
  4. Step 4: Simplify right side
    18,766.80x = 382,769,328.90
  5. Step 5: Solve for x
    x = 382,769,328.90/18,766.80
  6. Step 6: Final answer
    x = 20,396.09

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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.