Home / 12,917.68-19,372.29-5,019.64

Finding the Fourth Proportional to 12,917.68, 19,372.29 and 5,019.64

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Solution

The fourth proportional to 12,917.68, 19,372.29 and 5,019.64 is: 7,527.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.68 : 19,372.29 = 5,019.64 : x
  2. Step 2: Convert to fraction form
    12,917.68/19,372.29 = 5,019.64/x
  3. Step 3: Cross multiply
    12,917.68x = 19,372.29 × 5,019.64
  4. Step 4: Simplify right side
    12,917.68x = 97,241,921.78
  5. Step 5: Solve for x
    x = 97,241,921.78/12,917.68
  6. Step 6: Final answer
    x = 7,527.82

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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.