Home / 18,996.72-26,220.78-11,037.48

Finding the Fourth Proportional to 18,996.72, 26,220.78 and 11,037.48

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Solution

The fourth proportional to 18,996.72, 26,220.78 and 11,037.48 is: 15,234.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,996.72 : 26,220.78 = 11,037.48 : x
  2. Step 2: Convert to fraction form
    18,996.72/26,220.78 = 11,037.48/x
  3. Step 3: Cross multiply
    18,996.72x = 26,220.78 × 11,037.48
  4. Step 4: Simplify right side
    18,996.72x = 289,411,334.83
  5. Step 5: Solve for x
    x = 289,411,334.83/18,996.72
  6. Step 6: Final answer
    x = 15,234.81

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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.