Home / 12,518.19-18,784.22-5,127.84

Finding the Fourth Proportional to 12,518.19, 18,784.22 and 5,127.84

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Solution

The fourth proportional to 12,518.19, 18,784.22 and 5,127.84 is: 7,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.19 : 18,784.22 = 5,127.84 : x
  2. Step 2: Convert to fraction form
    12,518.19/18,784.22 = 5,127.84/x
  3. Step 3: Cross multiply
    12,518.19x = 18,784.22 × 5,127.84
  4. Step 4: Simplify right side
    12,518.19x = 96,322,449.05
  5. Step 5: Solve for x
    x = 96,322,449.05/12,518.19
  6. Step 6: Final answer
    x = 7,694.60

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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.