Home / 19,689.18-27,174.20-11,736.02

Finding the Fourth Proportional to 19,689.18, 27,174.20 and 11,736.02

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Solution

The fourth proportional to 19,689.18, 27,174.20 and 11,736.02 is: 16,197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.18 : 27,174.20 = 11,736.02 : x
  2. Step 2: Convert to fraction form
    19,689.18/27,174.20 = 11,736.02/x
  3. Step 3: Cross multiply
    19,689.18x = 27,174.20 × 11,736.02
  4. Step 4: Simplify right side
    19,689.18x = 318,916,954.68
  5. Step 5: Solve for x
    x = 318,916,954.68/19,689.18
  6. Step 6: Final answer
    x = 16,197.57

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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.