Home / 12,847.77-19,272.60-5,451.39

Finding the Fourth Proportional to 12,847.77, 19,272.60 and 5,451.39

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Solution

The fourth proportional to 12,847.77, 19,272.60 and 5,451.39 is: 8,177.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,847.77 : 19,272.60 = 5,451.39 : x
  2. Step 2: Convert to fraction form
    12,847.77/19,272.60 = 5,451.39/x
  3. Step 3: Cross multiply
    12,847.77x = 19,272.60 × 5,451.39
  4. Step 4: Simplify right side
    12,847.77x = 105,062,458.91
  5. Step 5: Solve for x
    x = 105,062,458.91/12,847.77
  6. Step 6: Final answer
    x = 8,177.49

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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.