Home / 19,338.12-28,999.44-8,249.76

Finding the Fourth Proportional to 19,338.12, 28,999.44 and 8,249.76

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Solution

The fourth proportional to 19,338.12, 28,999.44 and 8,249.76 is: 12,371.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.12 : 28,999.44 = 8,249.76 : x
  2. Step 2: Convert to fraction form
    19,338.12/28,999.44 = 8,249.76/x
  3. Step 3: Cross multiply
    19,338.12x = 28,999.44 × 8,249.76
  4. Step 4: Simplify right side
    19,338.12x = 239,238,420.13
  5. Step 5: Solve for x
    x = 239,238,420.13/19,338.12
  6. Step 6: Final answer
    x = 12,371.34

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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.