Home / 12,577.92-18,858.60-7,039.44

Finding the Fourth Proportional to 12,577.92, 18,858.60 and 7,039.44

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Solution

The fourth proportional to 12,577.92, 18,858.60 and 7,039.44 is: 10,554.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.92 : 18,858.60 = 7,039.44 : x
  2. Step 2: Convert to fraction form
    12,577.92/18,858.60 = 7,039.44/x
  3. Step 3: Cross multiply
    12,577.92x = 18,858.60 × 7,039.44
  4. Step 4: Simplify right side
    12,577.92x = 132,753,983.18
  5. Step 5: Solve for x
    x = 132,753,983.18/12,577.92
  6. Step 6: Final answer
    x = 10,554.53

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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.