Home / 12,923.14-19,383.63-5,129.86

Finding the Fourth Proportional to 12,923.14, 19,383.63 and 5,129.86

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Solution

The fourth proportional to 12,923.14, 19,383.63 and 5,129.86 is: 7,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,923.14 : 19,383.63 = 5,129.86 : x
  2. Step 2: Convert to fraction form
    12,923.14/19,383.63 = 5,129.86/x
  3. Step 3: Cross multiply
    12,923.14x = 19,383.63 × 5,129.86
  4. Step 4: Simplify right side
    12,923.14x = 99,435,308.19
  5. Step 5: Solve for x
    x = 99,435,308.19/12,923.14
  6. Step 6: Final answer
    x = 7,694.36

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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.