Home / 19,318.72-26,664-11,767.54

Finding the Fourth Proportional to 19,318.72, 26,664 and 11,767.54

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Solution

The fourth proportional to 19,318.72, 26,664 and 11,767.54 is: 16,241.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.72 : 26,664 = 11,767.54 : x
  2. Step 2: Convert to fraction form
    19,318.72/26,664 = 11,767.54/x
  3. Step 3: Cross multiply
    19,318.72x = 26,664 × 11,767.54
  4. Step 4: Simplify right side
    19,318.72x = 313,769,686.56
  5. Step 5: Solve for x
    x = 313,769,686.56/19,318.72
  6. Step 6: Final answer
    x = 16,241.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.