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Finding the Fourth Proportional to 19,934.88, 27,510.80 and 11,550.88

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Solution

The fourth proportional to 19,934.88, 27,510.80 and 11,550.88 is: 15,940.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,934.88 : 27,510.80 = 11,550.88 : x
  2. Step 2: Convert to fraction form
    19,934.88/27,510.80 = 11,550.88/x
  3. Step 3: Cross multiply
    19,934.88x = 27,510.80 × 11,550.88
  4. Step 4: Simplify right side
    19,934.88x = 317,773,949.50
  5. Step 5: Solve for x
    x = 317,773,949.50/19,934.88
  6. Step 6: Final answer
    x = 15,940.60

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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.