Home / 12,574.39-18,861.62-3,809.38

Finding the Fourth Proportional to 12,574.39, 18,861.62 and 3,809.38

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Solution

The fourth proportional to 12,574.39, 18,861.62 and 3,809.38 is: 5,714.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.39 : 18,861.62 = 3,809.38 : x
  2. Step 2: Convert to fraction form
    12,574.39/18,861.62 = 3,809.38/x
  3. Step 3: Cross multiply
    12,574.39x = 18,861.62 × 3,809.38
  4. Step 4: Simplify right side
    12,574.39x = 71,851,078.00
  5. Step 5: Solve for x
    x = 71,851,078.00/12,574.39
  6. Step 6: Final answer
    x = 5,714.08

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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.