Home / 19,650.88-27,115.86-11,153.98

Finding the Fourth Proportional to 19,650.88, 27,115.86 and 11,153.98

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Solution

The fourth proportional to 19,650.88, 27,115.86 and 11,153.98 is: 15,391.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,650.88 : 27,115.86 = 11,153.98 : x
  2. Step 2: Convert to fraction form
    19,650.88/27,115.86 = 11,153.98/x
  3. Step 3: Cross multiply
    19,650.88x = 27,115.86 × 11,153.98
  4. Step 4: Simplify right side
    19,650.88x = 302,449,760.12
  5. Step 5: Solve for x
    x = 302,449,760.12/19,650.88
  6. Step 6: Final answer
    x = 15,391.16

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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.