Home / 12,751.28-19,091.44-6,497.81

Finding the Fourth Proportional to 12,751.28, 19,091.44 and 6,497.81

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Solution

The fourth proportional to 12,751.28, 19,091.44 and 6,497.81 is: 9,728.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,751.28 : 19,091.44 = 6,497.81 : x
  2. Step 2: Convert to fraction form
    12,751.28/19,091.44 = 6,497.81/x
  3. Step 3: Cross multiply
    12,751.28x = 19,091.44 × 6,497.81
  4. Step 4: Simplify right side
    12,751.28x = 124,052,549.75
  5. Step 5: Solve for x
    x = 124,052,549.75/12,751.28
  6. Step 6: Final answer
    x = 9,728.64

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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.