Home / 18,997.96-26,217.30-11,045.20

Finding the Fourth Proportional to 18,997.96, 26,217.30 and 11,045.20

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Solution

The fourth proportional to 18,997.96, 26,217.30 and 11,045.20 is: 15,242.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.96 : 26,217.30 = 11,045.20 : x
  2. Step 2: Convert to fraction form
    18,997.96/26,217.30 = 11,045.20/x
  3. Step 3: Cross multiply
    18,997.96x = 26,217.30 × 11,045.20
  4. Step 4: Simplify right side
    18,997.96x = 289,575,321.96
  5. Step 5: Solve for x
    x = 289,575,321.96/18,997.96
  6. Step 6: Final answer
    x = 15,242.44

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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.