Home / 12,249.60-16,886.34-9,557.79

Finding the Fourth Proportional to 12,249.60, 16,886.34 and 9,557.79

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Solution

The fourth proportional to 12,249.60, 16,886.34 and 9,557.79 is: 13,175.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.60 : 16,886.34 = 9,557.79 : x
  2. Step 2: Convert to fraction form
    12,249.60/16,886.34 = 9,557.79/x
  3. Step 3: Cross multiply
    12,249.60x = 16,886.34 × 9,557.79
  4. Step 4: Simplify right side
    12,249.60x = 161,396,091.59
  5. Step 5: Solve for x
    x = 161,396,091.59/12,249.60
  6. Step 6: Final answer
    x = 13,175.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.