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Finding the Fourth Proportional to 18,482.80, 27,727.80 and 7,952.80

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Solution

The fourth proportional to 18,482.80, 27,727.80 and 7,952.80 is: 11,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.80 : 27,727.80 = 7,952.80 : x
  2. Step 2: Convert to fraction form
    18,482.80/27,727.80 = 7,952.80/x
  3. Step 3: Cross multiply
    18,482.80x = 27,727.80 × 7,952.80
  4. Step 4: Simplify right side
    18,482.80x = 220,513,647.84
  5. Step 5: Solve for x
    x = 220,513,647.84/18,482.80
  6. Step 6: Final answer
    x = 11,930.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.