Home / 8,123.96-12,186.38-2,577.75

Finding the Fourth Proportional to 8,123.96, 12,186.38 and 2,577.75

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Solution

The fourth proportional to 8,123.96, 12,186.38 and 2,577.75 is: 3,866.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.96 : 12,186.38 = 2,577.75 : x
  2. Step 2: Convert to fraction form
    8,123.96/12,186.38 = 2,577.75/x
  3. Step 3: Cross multiply
    8,123.96x = 12,186.38 × 2,577.75
  4. Step 4: Simplify right side
    8,123.96x = 31,413,447.49
  5. Step 5: Solve for x
    x = 31,413,447.49/8,123.96
  6. Step 6: Final answer
    x = 3,866.77

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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.