Home / 12,739.50-19,115.64-6,083.46

Finding the Fourth Proportional to 12,739.50, 19,115.64 and 6,083.46

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Solution

The fourth proportional to 12,739.50, 19,115.64 and 6,083.46 is: 9,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.50 : 19,115.64 = 6,083.46 : x
  2. Step 2: Convert to fraction form
    12,739.50/19,115.64 = 6,083.46/x
  3. Step 3: Cross multiply
    12,739.50x = 19,115.64 × 6,083.46
  4. Step 4: Simplify right side
    12,739.50x = 116,289,231.31
  5. Step 5: Solve for x
    x = 116,289,231.31/12,739.50
  6. Step 6: Final answer
    x = 9,128.24

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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.