Home / 19,647.39-27,108.90-11,147.43

Finding the Fourth Proportional to 19,647.39, 27,108.90 and 11,147.43

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Solution

The fourth proportional to 19,647.39, 27,108.90 and 11,147.43 is: 15,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.39 : 27,108.90 = 11,147.43 : x
  2. Step 2: Convert to fraction form
    19,647.39/27,108.90 = 11,147.43/x
  3. Step 3: Cross multiply
    19,647.39x = 27,108.90 × 11,147.43
  4. Step 4: Simplify right side
    19,647.39x = 302,194,565.13
  5. Step 5: Solve for x
    x = 302,194,565.13/19,647.39
  6. Step 6: Final answer
    x = 15,380.90

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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.