Home / 12,577.92-18,865.44-4,257.96

Finding the Fourth Proportional to 12,577.92, 18,865.44 and 4,257.96

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Solution

The fourth proportional to 12,577.92, 18,865.44 and 4,257.96 is: 6,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.92 : 18,865.44 = 4,257.96 : x
  2. Step 2: Convert to fraction form
    12,577.92/18,865.44 = 4,257.96/x
  3. Step 3: Cross multiply
    12,577.92x = 18,865.44 × 4,257.96
  4. Step 4: Simplify right side
    12,577.92x = 80,328,288.90
  5. Step 5: Solve for x
    x = 80,328,288.90/12,577.92
  6. Step 6: Final answer
    x = 6,386.45

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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.