Home / 19,755.99-27,261.03-11,689.89

Finding the Fourth Proportional to 19,755.99, 27,261.03 and 11,689.89

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Solution

The fourth proportional to 19,755.99, 27,261.03 and 11,689.89 is: 16,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,755.99 : 27,261.03 = 11,689.89 : x
  2. Step 2: Convert to fraction form
    19,755.99/27,261.03 = 11,689.89/x
  3. Step 3: Cross multiply
    19,755.99x = 27,261.03 × 11,689.89
  4. Step 4: Simplify right side
    19,755.99x = 318,678,441.99
  5. Step 5: Solve for x
    x = 318,678,441.99/19,755.99
  6. Step 6: Final answer
    x = 16,130.73

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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.