Home / 14,118.42-19,480.82-8,147.90

Finding the Fourth Proportional to 14,118.42, 19,480.82 and 8,147.90

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Solution

The fourth proportional to 14,118.42, 19,480.82 and 8,147.90 is: 11,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.42 : 19,480.82 = 8,147.90 : x
  2. Step 2: Convert to fraction form
    14,118.42/19,480.82 = 8,147.90/x
  3. Step 3: Cross multiply
    14,118.42x = 19,480.82 × 8,147.90
  4. Step 4: Simplify right side
    14,118.42x = 158,727,773.28
  5. Step 5: Solve for x
    x = 158,727,773.28/14,118.42
  6. Step 6: Final answer
    x = 11,242.60

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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.