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Finding the Fourth Proportional to 12,184.96, 18,284.96 and 4,788.12

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Solution

The fourth proportional to 12,184.96, 18,284.96 and 4,788.12 is: 7,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.96 : 18,284.96 = 4,788.12 : x
  2. Step 2: Convert to fraction form
    12,184.96/18,284.96 = 4,788.12/x
  3. Step 3: Cross multiply
    12,184.96x = 18,284.96 × 4,788.12
  4. Step 4: Simplify right side
    12,184.96x = 87,550,582.68
  5. Step 5: Solve for x
    x = 87,550,582.68/12,184.96
  6. Step 6: Final answer
    x = 7,185.14

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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.